When I was a kid, ethnic cuisines consisted of
(a) Italian - spaghetti, linguini, veal parm, lasagna, ravioli (actually pretty deep, compared to the ones below)
(b) Mexican - hard-shell tacos with ground beef was pretty much it -- oh, and hot dog stand tamales, and the occasional deep-fried burrito
(c) Chinese - Egg drop soup, egg rolls, egg foo young (hmm, lots of egg), shrimp with lobster sauce, moo goo gai pan and the like
What woke you up to various cuisines?
For me, Mexican food got elevated in college, with the long-gone Los Magueyes in Evanston: Cilantro was never a major flavoring, it was a big discovery that Mexican food could be bright and fresh tasting.
Chinese food was earlier: a Szechuan place opened up in Northbrook in the late 70s, and it set the standard for Kung Pao Chicken and other dishes that seemed to get worse and worse as the decades wore on, until I rediscovered that the quality had been hiding in Chinatown at places like Lao Sze Chuan.
Italian's subtlety probably came slowest - partly FoodTV, a visit to a Milan office, and a trip to Batali's Babbo in NYC.
Thai was initially exciting: new flavors and a lot of spice that showed up I think around late high school years... but like Chinese, seemed to get dumbed down and sweeter over time (ooh! mee grob!), until I found Spoon through this board.
So... when did food change for you?
What is patriotism, but the love of good things we ate in our childhood?
-- Lin Yutang