I have become somewhat of a broken record on this subject among people that talk to me regularly, but until I keep seeing this sentiment expressed by grown women, I shall continue to be an annoyance and keep talking about the dropping ages of menarche and thelarchy.
The answer here isn’t to browbeat and socially program men into not being attracted to signs of real sexual maturity. It is instead to stop sexual maturity from occurring so much earlier than mental maturity.