As you guys know, I acquired my kids at ages 3 & 4 from Korea. Children raised on kimchee (& in the case of my son, not much else) will eat anything.
1) Eat what you eat? Always. There were a few hated veggies, but I always served two, so they could eat the one they liked.
2) Finish what you give them? You bet.
3) Stay at the table while they eat? Absolutely
4) Eat as a family? Yes, although sometimes
DH worked late
5) COMPLAIN about EVERYTHING!!!!!!!!!!!! Pretty much never.