Adopting your pet from a shelter is better for both buyer and animal. Puppy mills are notoriously abusive environments and they trick buyers by proliferate the internet with ads. Sadly these puppies and kittens that are a product of inbreeding and abuse. Do not give your money to these people. Going to a shelter makes you certain where your money is going and who is benefiting from the purchase. Ultimately, going to a shelter will help your community by alleviating part of the burden an abundance of unwanted animals can cause and stop deviant operations from receiving funds. It is absolutely true that every little bit counts.
When you adopt an animal, the shelter typically requires that you spay or neuter the animal. This is beneficial because fixing pets now prevents unwanted pets later. Around 2.7 million adoptable dogs and cats are euthanized each year in the United States simply because too many people give up their pets, and too few people adopt from shelters. Because there is limited space at shelters, staff members sometimes need to make very hard the decision to euthanize animals who have not been adopted. If more people adopted and fixed their animals we could greatly reduce the number of euthanized strays. Shelters are nearly always over crowded. When you rescue an animal from the shelter you are helping to alleviate the stress on all of the animals there, not just the one you adopt. All of the animals you leave behind benefit from living in a shelter that is at or below its occupancy max. Fewer animals allow staff to spend one-on-one time with each animal and as a result all the animals' emotional states and living conditions improve.
Finally, the assumption that purebred animals bought from a breeder make better, healthier pets is a myth. Pure bred animals are generally very sick and deformed animals. This occurs because breeders select animals with specific physical and personality traits desired in the breed. This kind of selection means that the offspring come from an ever exclusive, limited gene pool that lacks the benefits of genetic diversity. Mixed breed typically live longer, healthier lives because of strong immune systems, no allergies, smaller risk for cancers, and fewer genetic markers for chronic health issues like arthritis, bloat, heart murmurs, the list goes on. I could also rant about how selective breeding has created animals with very unnatural features, like overly large heads so mothers have to have c-sections, the inability to naturally mate, snubbed noses that prevent proper breathing, but that could be a whole separate post. I will encourage anyone interested in acquiring a pet to look research common health problems since providing healthcare for your pet can become expensive.
Genetic diversity also means a better personality and temperament. Just like mutts come with a variety of physical variations, their personalities are often more complex than purebreds as well. All of my dogs have been mutts, and their personalities are terrific. Since mixed breeds are not “programmed” by selective breeding they aren't as high-strung as pure-breds, resulting in an animal that is far more adaptable to a variety of households and living conditions. Besides, why choose a purebred for one trait when you can adopt a mixed breed for two or three awesome characteristics?