It’s so important for people to socialize their dogs when they are young, and many folks just don’t. They need to be around ALL kinds of people, disabled folks, children, and people of different races. Dogs will naturally be wary of the unfamiliar, but it’s your job as a dog owner to do something about that! When my dog was young I tried to take him to as many places as possible and if there was an opportunity for him to interact with people we did it, even if I didn’t feel like it. He’s now just the sweetest thing and loves everybody.