@fluffy I'm like 99% sure it's literally just demographic shift + meme tabloid overreaction. It differs by race but is still relatively stable between countries and they blow that out

https://en.wikipedia.org/wiki/Menarche
Various estimates have placed it at 13.[better source needed][2] There is a later age of onset in Asian populations compared to the West.[better source needed][3] The average age of menarche is about 12.7 years in Canada,[better source needed][4] and 12.9 in the United Kingdom.[5] A study of girls in Istanbul, Turkey, found the median age at menarche to be 12.7 years.[better source needed][6] In the United States, an analysis of 10,590 women aged 15–44 taken from the 2013–2017 round of the CDC’s National Survey of Family Growth found a median age of 11.9 years (down from 12.1 in 1995), with a mean of 12.5 years (down from 12.6).[7]