like let's say you were an awkward looking kid but once you hit puberty you start looking better, people tell you you're good looking, you get asked out once in a while etc. at what age will you become stunning?
it depends on how well they take care of themselves. depending on how you live your life it can either start going downhill after your mid 20s or not. I've seen women who kept getting better as they aged because they took care of themselves with exercise, diet, and limiting exposure to direct sunlight.