Bringing home a new pet is exciting, but no one gets everything right the first time.

First-time pet owners often underestimate just how much work goes into caring for an animal, and it’s easy to make mistakes along the way. Whether it’s feeding the wrong foods, skipping important training, or expecting a pet to be way easier than they actually are, these common slip-ups can lead to stress for both the owner and the animal. The good news is that most mistakes are fixable with a little learning and patience. These are some of the most common missteps people make, along with some tips for avoiding them.
1. Choosing a pet based on looks instead of lifestyle

It’s easy to fall in love with a cute kitten or a fluffy dog, but picking a pet based on appearance alone is one of the biggest mistakes new owners make. Different breeds and species have different needs, energy levels, and temperaments.
If you live in a small flat, a high-energy breed might not be the best fit. If you have allergies, a long-haired cat may not be ideal. Researching a pet’s personality and care needs before bringing them home can prevent a lot of frustration.
2. Not considering long-term commitment

Pets aren’t short-term companions—they’re lifelong commitments. Many first-time owners get caught up in the excitement of adopting a pet without fully considering how their lives will change over the years.
Dogs can live 10 to 15 years, cats can reach 20, and even smaller pets like rabbits or birds require years of care. Before adopting, it’s important to think about future life changes—moving, job changes, or even travel habits—and whether you can truly commit to caring for a pet long-term.
3. Overfeeding (or underfeeding) their pet

First-time pet owners often struggle with feeding; some give their pets way too much food, while others don’t feed enough or provide the wrong diet. It’s easy to assume a pet is always hungry just because they beg, but overfeeding can lead to obesity and health issues.
On the other hand, not feeding the right amount or type of food can lead to malnutrition. It’s important to follow vet-recommended feeding guidelines and choose high-quality pet food that meets your pet’s nutritional needs.
4. Neglecting training and socialisation

Many new pet owners assume their pet will just “figure things out” on their own. But without proper training and socialisation, animals can develop bad habits or become anxious in unfamiliar situations.
Dogs, in particular, need structured training for basic commands, leash walking, and behaviour around people and other pets. Even cats benefit from learning routines and social exposure. The earlier you start, the easier it is to shape good behaviour.
5. Skipping vet visits

Some first-time pet owners wait until there’s a visible problem before taking their pet to the vet. However, regular check-ups are crucial for catching health issues early and keeping vaccinations and preventative care up to date. Routine vet visits help prevent bigger (and more expensive) health problems down the line. Even if your pet seems fine, an annual check-up is a must for monitoring their overall health.
6. Not budgeting for pet expenses

Many first-time owners underestimate the cost of having a pet. It’s not just food—you’ll need to budget for vet visits, grooming, pet insurance, toys, and unexpected medical emergencies. Pets can be expensive, and surprise costs can add up quickly. Having a financial plan before adopting a pet ensures you’re prepared to take care of them properly without unexpected stress.
7. Assuming all pets are low-maintenance

Many people believe that certain pets, such as cats, fish, or small animals, are “low-maintenance.” While some require less attention than others, every pet has specific care needs that shouldn’t be ignored. Cats need regular litter box cleaning and stimulation, fish require proper tank maintenance, and even tiny pets like hamsters need proper habitat setups. No pet is truly effortless, so it’s important to know what you’re getting into.
8. Ignoring exercise and mental stimulation

Some first-time pet owners assume that as long as their pet is fed and sheltered, they’ll be fine. But without enough exercise and mental stimulation, pets can become bored, anxious, or destructive. Dogs need daily walks and playtime, cats benefit from climbing and hunting-style toys, and even small pets need enrichment activities. Making sure your pet has enough physical and mental activity prevents behavioural issues down the road.
9. Using punishment instead of positive reinforcement

It’s frustrating when a pet misbehaves, but yelling or punishing them rarely helps. Many first-time owners make the mistake of scolding their pets without teaching them the right behaviour. Positive reinforcement—rewarding good behaviour with treats, praise, or play—works much better than punishment. Pets learn faster when they’re encouraged rather than scared.
10. Letting pets have too much freedom too soon

New pet owners sometimes let their animals roam freely in the house from day one. While this might seem like a good way to make them feel at home, it can lead to accidents, destruction, and bad habits. Instead, it’s better to introduce them to spaces gradually, setting up safe areas where they can adjust before giving them full access. Crate training for dogs and setting boundaries for cats can make a big difference in easing their transition.
11. Forgetting about grooming

Some pet owners assume that their pet will take care of their own hygiene, but regular grooming is essential. Dogs and cats need brushing to prevent matting, and long-haired breeds require even more attention. Nail trimming, ear cleaning, and dental care are also key parts of pet maintenance. Neglecting grooming can lead to health issues, discomfort, and costly vet visits later on.
12. Not pet-proofing their home

New pet owners often forget that their home may contain things that are dangerous for animals. Electrical cords, toxic plants, small objects, and certain foods can pose serious risks to pets. Before bringing a pet home, it’s important to go through your space and remove or secure anything that could harm them. Baby gates, secure rubbish bins, and pet-safe household products help create a safer environment.
13. Expecting pets to act like humans

One of the biggest mistakes new pet owners make is expecting animals to behave like people. They assume their pet “knows better” or that they’re being difficult on purpose. Pets don’t think like humans—they react to training, instincts, and the environment around them. Understanding and respecting their natural behaviour makes for a much smoother relationship and a happier pet.