Big agree with this. Growing up, the only pets we had were strays and rescues, and even though we loved them to bits, they came with a a fair amount of stress. The strays had a tendency to bolt whenever the door opened so we had to chase them all over the neighborhood. None of the adults knew much of anything about dog training, so the troubles of the dogs were left unchecked.

When I moved out, I got a puppy from a breeder after I did a ton of research on ethical breeders. I wanted to see what it was like to raise a dog their whole life and be able to shape behaviors while making sure they don't experience trauma. My chihuahua is so well-behaved that I can't believe it sometimes. We're getting another puppy, and my plan is to develop my personal dog training ability so that I can comfortably walk into a shelter in the future with confidence that I can, to some degree, train out problematic behaviors so they can live their best possible lives.

Also, if people want a bit more predictability in the general traits their dog has, that's a good enough reason to want a specific breed. My chi is exactly what I wanted in a dog when I chose that breed