I have, in the past, often wished for larger breasts. I was very thin most of my life with a rectangle shape (would be happy to go back to that, hello I'm too lazy to jog in the morning! LOL) and received lots of comments/criticisms about how I had no boobs, I looked like a boy, etc, etc. This lasted well into my late 20s, so yes, I did wish I had larger boobs for appearance reasons. OTOH, I was always well aware that some of my athletic activities were much, much more pleasant without them. When I was young, I remember this one poor girl in my horse back riding class (this was before sports bras were common). I swear the poor thing gave herself a black eye.
Then I discovered properly fitting bras and also padded bras. Now if I want cleavage, I can have it. When I don't, well, I don't! My SIL got a breast lift and augmentation in her late 30s and encouraged me to do same. I passed. I'd rather have my options.