I am a post-90s generation, and I like Henan Opera since I was a child. My peers laughed at me and called me vulgar. What should I do?

I think this is a personal hobby and has nothing to do with vulgarity. Others say you are vulgar, but he doesn't understand the beauty of Henan opera. When he said this, he was "vulgar" than you. Stick to your hobbies and don't be influenced by others. It's hard for modern people to have their favorite love. Let's go