Why don't some people eat fish?

Because I was afraid of fishbone when I was a child, I never ate it. Later, when I asked about the smell of fish, I got bored and stopped eating fish! Not eating fish is just a personal habit. I didn't eat fish since I was a child, but now I only eat fish without smell! Just like many children don't eat fat, my little sister doesn't eat noodles yet! In a word, habit becomes nature.