Then there's those that don't go out for Thai food or other different cuisines simply because they don't think they will like it. It's one thing if you've tried it and didn't enjoy it, but I really don't have a whole lot of respect for people that just aren't willing to try something new. Same goes with sushi, you don't have to order sashimi if it's new to you, but I would encourage you to at least try the California Roll...which is cooked.
Oh, man, this is my dad. Once he tries it, he loves it, but he's always convinced he's gonna hate it.
Typical way this goes:
Me: let's go to this Vietnamese place!
Him: oh, no, I hate Vietnamese food. Too spicy/fishy/slimy/whatever.
Me: *death glare* you're acting like a toddler. You've never had it. You'll like it. We're going.
And once we're there, without fail, he chats with the waiter, asks for recommendations, LOVES the food, and requests that we go back.
So far, we've done that exact pattern for Thai, Chinese, Vietnamese, Indian, Ethiopian, Louisiana-type southern food, Tex-mex, and full-on Mexican. Oh, and Brazilian BBQ. the only one he liked but didn't love was Ethiopian.
And yet, the next time I suggest a new type of food? Pattern repeats.