Funny, I thought it was related to the hormones we have in our dairy cows, to promote them to produce milk. I know it’s purely conjecture on my part, but 100% of the girls who lived on a dairy farm while I grew up with in rurual S.Dakota ‘matured’ quite early, compared to the city girls.
These girls grew up on fresh milk, right from the Separator (cream rises to the top, whole milk on the bottom). No homogenation - so they drank what the cow produced. So, while most 8th grade girls were just getting into training bras, these girls where in the ‘C’ and ‘D’ cup range. As a young boy - I noticed that.
Milk - does a body GOOOOOD.