When they're young lmao. But the two pictures you've provided are of two completely different women in completely different surroundings/cultures/etc. You can't really compare the two, given that one may be living in a difficult environment, and the other is not. One is able to train, and the other might not, for reasons we have no idea about. That could be lack of access, finances, or where she lives. So it's not really a fair comparison (sorry to preach haha).
Your question is good, but your source material isn't the greatest. Sorry :))
Why is she wearing a push up bra with a sports bra? 🤔 And who contours their boobs to work out lool?🤔🤔😂
Anyways, I think early to mid 20s might be the best for most. Some girls still have that little baby chub at 16-20, I kind of do still a little bit. And baby faced girls especially look best from age 24-28 in my opinion when they finally stop looking like they're 15. 😂😂 And also their bodies should be completely and fully developed by then.
I admire the woman in the lower picture 100000 times more than the cam whore in the first. The old woman's face shows hardships, every wrinkles shows what she went through in life, heartaches, struggles, sleep less nights, pain, joy, sorrow, tears, simple days and hard days. The upper picture just shows a spoiled little entitled brat. And you are immature.