I have never tried sushi, never really even thought about it, I am not a great fan of the concept. But lately, my daughter keeps mentioning it and how much she'd like to try it, so it seems that I can't avoid it for much longer...

I had no idea that yellowfin tuna is an endangered species. Actually, when we last visited a gourmet restaurant here and I ordered that dish, the waiter was "regretful to announce that the dish is not currently served because the fishing season is off for yellowfins" -- now, I know!
As for eating out, my son is like a machine and eats like a grown man - in fact, like a old man, he prefers all the traditional foods that other kids hate, and he dislikes pizzas, toasts, sandwiches, etc; he is only 8 for heaven's sake! My daughter on the other hand is the exact opposite, she examines every discoloration and herb on her plate, picking it all carefully, putting aside anything that looks "suspicious" in her mind; she only likes gourmet dishes (the most expensive ones usually) with no questions asked. So, I can relate to your experience more or less, good to hear you all had a good time there.