my parents were so cool, they let me where whatever I wanted. I guess they didn't mind because I was a tomboy and for the longest time I wore just jeans and tees. In my senior year in high school I mostly wore tight jeans and small tops. Hey, I had the body, why not?
They let me choose what I thought was appropriate, and I didn't buy tops that showed too much. (by "small tops" I mean ones that showed the belly, not cleavage.)