It depends. I know that my siblings know I like it again. They've seen me on here after all and even know I've rewatched some of the movies. When I got the Land Before Time carrycase, I attempted to avoid telling my mom exactly what movie I got, but eventually gave in and she seemed to accept. She says the only reason that she disliked us watching them as kids was because of Cera's screaming.
If it were someone who I knew thought it was stupid and they asked. I would more then likely say that it was none of their business what I liked. That would probably be akin to saying "yes" so I guess it's honesty.
Though personally I could care less what people thought of my choice in movies, tv shows, video games, songs, comics, books, etc. etc. My whole family has put down my liking for Japanese super hero shows, but it doesn't bother me too much. Let them think what they want. They're the ones that are missing out on something that is truely special.