How to Choose a Pet: A Cost, Time and Lifestyle Checklist

The right way to choose a pet is to start with your limits, not the animal. Count what you can spend each month, the hours you can give each day, and how many years you can commit. Then pick the species and breed that fit. This guide shows how to choose a pet using lifetime cost, lifespan and daily time, and it answers what is a good first pet, a good pet for a child and the best pet for a family.

Photo: cottonbro studio / Pexels

Start with the three limits that decide everything

Money, time and years decide which pet works for you. A pet that fits one limit but breaks another becomes a problem within months. Write all three numbers down before you look at a single listing.

The AVMA's responsible pet ownership guidance says to avoid impulsive choices and to pick a pet that fits your home and routine. It also tells owners to plan for the pet's full lifespan and to keep only the number of pets they can provide a suitable home for. Housing rules count too, so check your lease or local law first.

Ask these three questions:

1. What can I spend? Total the monthly food, vet and insurance costs, plus an emergency reserve.
2. How many hours a day can I give? Count walks, play, feeding, cleaning and any care someone else cannot cover.
3. How many years will I stay? Compare the lifespan to your plans for moving, school and family.

About 95 million U.S. households owned a pet in 2025, per APPA's May 2026 release. Most of them answered these questions after the animal arrived. Answering first is the cheap way to get it right.

Step 1: Price the whole life of the pet

The cheapest pet to buy is rarely the cheapest to keep. Lifetime cost combines the first-year setup, every year of ongoing care and the length of the pet's life. PetBudget's breed data shows how far apart common choices land.

A Domestic Shorthair cat comes to about $13,640 over its life, and a Chihuahua to about $26,291. A Labrador Retriever is about $33,488, and a mixed-breed dog is about $31,674, per PetBudget's data. A Great Dane lands near $32,240 despite a short 8-year lifespan, because its yearly costs are so high.

For the first-year price by species, read how much a dog costs and how much a cat costs. Our lifetime cost of a dog vs a cat guide compares them directly. If money is tight, see the cheapest pets to own.

Step 2: Match daily time to the animal

Daily time is the limit most new owners underestimate. A cat can be left alone for a workday, and a dog usually cannot. PetBudget's breed data lists a recommended exercise time for every breed, and the gap is large.

Animal	Daily exercise or care	Yearly cost after year one	Fits a schedule that is...
Domestic Shorthair cat	20 min play, litter care	$822	Busy, with a few minutes morning and evening
Cavalier King Charles Spaniel	40 min	$2,120	Flexible, with company most of the day
Beagle	60 min	$1,825	Active, with a yard or long walks
Labrador Retriever	60 min	$2,813	Active, with a family at home
Border Collie	90 min	$2,384	Very active, with a job for the dog
Siberian Husky	120 min	$2,588	Built around outdoor time

A high-energy dog left without exercise tends to find its own entertainment, usually the furniture. If you work long hours, choose a lower-energy animal or budget for a walker. Our dog and pet sitting boarding cost guide lists the going rates. For tight spaces, see the best pets for apartments.

Step 3: Count the years you are signing up for

Lifespan is a bigger commitment than most people expect. A hamster is a one- or two-year pet, while a leopard gecko or a cat can live 15 years or more. The chart compares typical lifespans.

PetMD's life expectancies of popular unique pets gives the small-animal ranges. PetBudget's breed data supplies the cat and dog figures. A 15-year pet outlasts a high-school career, a lease or a first marriage, so plan around your own timeline.

Short-lived pets are not simpler. A hamster's cage still needs setup, and you may replace the animal several times in the years a cat would live. See our guide to low maintenance pets for care time by species.

Match your lifestyle to the right animal

Your lifestyle is the best predictor of whether a pet will thrive in your home. Start from how you live today, not how you hope to live after the pet arrives. The table pairs common lifestyles with realistic choices from PetBudget's data and the care sheets above.

Your lifestyle	Realistic fit	Why	Watch out for
Long workdays, small home	Short-haired adult cat	About $822 a year; no walks	Vet bills for 15 years
Runner or hiker	Active dog such as a Border Collie	90 minutes of exercise suits an outdoor routine	$2,384 a year and daily commitment
Home most of the day	Calm companion dog	Company and short walks	Separation stress if routines change
Frequent travel	Cat with a sitter, or a gecko for short trips	Low daily needs	Sitter cost; heated habitats need checks
Tight budget	Hamster, rat pair or fish	$15 to $40 a month per PetLifetimeCost	Setup cost and short lifespans
Allergies in the house	Test before adopting; ask a doctor	Dander triggers some people	A pet may not work at all

If your week changes often, pick the pet that tolerates change. Cats handle irregular hours better than most dogs, and fish handle them better than rodents. For the full cost per species, see the PetLifetimeCost cheapest pets guide and our own cheapest dog breeds to own.

What is a good first pet?

A good first pet is forgiving, affordable and matched to your actual routine. For most first-time owners that means a short-haired adult cat or a calm, small adult dog. Small caged animals and fish work as lower-cost starters if you accept shorter lifespans.

First pet	Why it works	Watch out for
Short-haired adult cat	No walks; $822 a year in PetBudget's data	15 years of vet bills
Small, calm adult dog	Company and routine	$1,599 to $2,120 a year, daily walks
Hamster or rat pair	Low monthly cost	Short lifespan; rats must live in pairs
Betta fish	Few daily tasks	Heater and filter run every day
Leopard gecko	Quiet; needs little space	15 to 20 years; heat and UV lights

Adopt an adult when you can. An adult's temperament is already known, and shelters can tell you how it behaves. About 5.8 million dogs and cats entered U.S. shelters in 2025, and 4.2 million were adopted, per the Shelter Animals Count 2025 report. Our guides to adopting a dog and adopting a cat show the typical fees.

What is a good pet for a child?

A good pet for a child is a gentle, adult animal in a home where an adult handles the care. The American Academy of Pediatrics' guide to choosing a pet suggests waiting until a child can handle and care for an animal, usually around age 5 or 6. It notes that younger children have trouble telling an animal from a toy, which can provoke a bite.

The same AAP page says retrievers and beagles tend to be gentle with children. It lists boxers, German Shepherds, pit bulls, Dobermans and miniature French poodles as more unpredictable. It adds that an older animal is often safer than a puppy or kitten, which may bite out of playfulness. If a child has eczema, hay fever or asthma, or the family has a strong allergy history, ask a pediatrician before you choose.

Use these rules for a child's pet:

1. Wait for readiness. Do not buy an animal to teach a very young child responsibility.
2. Pick an adult. Choose an animal with a known temperament.
3. Supervise. An adult stays in charge of feeding, vet visits and every interaction with young children.
4. Check allergies. Test the family's reactions before you commit.
5. Budget for the adult. The parent pays for the pet, whatever the child promises.

What is the best pet for a family?

The best pet for a family fits the whole household's time, budget and allergies, not just one person's wishes. A gentle adult dog or cat suits many families. A larger family can also share a pair of rats or guinea pigs.

Check these before you decide:

• Adult schedule. Who is home at 7 a.m., noon and 6 p.m.?
• Space. Does the home have a yard, or will walks do the job?
• Allergies. Does anyone in the household react to dander?
• Budget. Can you cover the yearly cost plus a reserve for surprises? Our emergency vet cost guide explains how big one bill can get.
• Other pets. A new animal must fit with the ones already at home. See how to introduce a new pet to your home.

Before you commit, run the numbers in our can I afford a dog guide or can I afford a cat guide.

Why adopted pets come back, and how to avoid it

Most returns come from a mismatch between the animal and the household. A 2020 study in the journal Animals on adopted pets returned to a shelter found that dogs were most often returned for behavior linked to aggression, at 38.2%. Cats were most often returned for the adopter's own reasons, at 56.9%, with moving the most frequent one.

You can reduce each risk:

• Behavior returns. Choose an adult whose temperament the shelter has observed, and budget for training.
• Moving returns. Confirm your lease allows the pet and plan for pet rent. Our renters insurance dog bite coverage guide covers the liability side.
• Cost returns. Price the full year before you adopt, and decide how you will cover big bills. See pet insurance vs an emergency fund.

A short checklist to finish your decision

Work through this checklist before you bring any animal home. If you cannot tick every line, wait or pick a simpler pet.

1. Budget. I know the yearly cost and can cover the first year plus a reserve.
2. Time. I can give the daily hours the animal needs, including weekends and vacations.
3. Housing. My lease or local rules allow this pet, and I know the fees.
4. Years. I can commit for the full lifespan.
5. People. Everyone at home agrees, and nobody is allergic.
6. Vet. A vet who treats this species is nearby, and I know the exam cost. See how much a vet visit costs.
7. Plan. I know how I will introduce the pet to my home and other animals.

The bottom line

To choose a pet, set your budget, daily hours and years first, then pick the animal that fits all three. A short-haired adult cat is the easiest first pet, a calm adult dog suits an active household, and small animals trade cost for a shorter life. For children, wait until about age 5 or 6, choose an adult animal, and keep an adult in charge. Price the lifetime in the PetBudget calculator before you say yes.