lol, your friend is right. When I was in elementary school, the Jewish kids often wanted to trade their lunches during the run up to Passover. Especially when they contained gefilte fish. I wasn't interested in that, but I did kind of like matzoh.
Whatever you grew up on you generally like.
Not at all. Just about nothing I eat now is stuff I ate as a child. Maybe burgers, but everyone eats burgers, and mine are better than when I was growing up because they're medium rare. My father liked his meat well done, which was a cross to bear. My mother tried to compensate by cooking roasts in a very hot oven, so the ends were sufficiently gray, and the middle a little pinkish, but it wasn't really adequate. She also liked things like creamed corned beef. Ugh.
She did, however, go through a phase in which she stuffed everything: chickens, chicken breasts, double pork chops, flank steak, flounder, and probably some things I've forgotten. But that was okay with me, because I loved stuffing then, and love it today. But I use much more onion, celery, poultry seasoning, and butter.
And then I started doing some cooking for myself in my teens, and never looked back.