My so wanted to get his dog from his parents when we move into our house. I'm fine with it but my…

My so wanted to get his dog from his parents when we move into our house. I'm fine with it but my parents are lecturing him about it and it's upsetting him 😑😒 like its our house. If we want another dog we will get another dog 🐶 I'm just worried because my little one has some behavioral issues when it comes to other dogs