Why don't some people like to eat chicken legs?

I am the kind of person who is particularly picky about meat. I only eat chicken, pork, fish and seafood, and I don't eat anything else. This is influenced by my father. When I was a child, my father accidentally told me why he didn't eat beef and mutton. He said that after eating, his mouth smelled bad, so I stopped eating, even other meat. Just like a little friend of mine who doesn't eat meat. This is the influence of our parents on us when we were young.