Well, my judgement is that I haven't known my father to be wrong about very many things before, and so I trust his. He says you become an adult by taking responsibility for things. I don't think that a child doing as he is told makes him less of a person, but I know some people don't think terribly highly of children anyway.
Of course some wizards are awful. I wouldn't say that I liked all the wizards here, either. I meant that is different here because I do talk to some of the muggles. I never did at home. But if I didn't here, I'd have to stay indoors all the time and hardly speak to anyone at all, and I don't think my father would want that life for me.