What’s wrong with string dogs?

Crossbreeding refers to the crossing of different breeds of dog. For example, some people now have fox dogs, and some people wonder whether they are foxes or dogs. What is the other kind of crossbreeding? If I like a dog with long ears and I like a dog with a short mouth and I want to fix it, then I try to cross the two breeds and keep the offspring with this trait. So there is a lot of randomness in the way people choose to breed their pets. For example, I like big ones, some people like small ones, some people like long coats, some people like short coats, some people like black, some people like red. Some people like black and some like red. These are just a few aspects of pets. Some people like the dog to be streamlined and to run, others like it to be less active with shorter legs, so the choice is based on people’s preferences.