Not sure why MC questions about being approached by Women even-though he is now 14.
I mean, in a World with high mortality rate for Men especially for Adventurer, and remote places that has limited access to outsiders that it causing inbreeding issues (to the point that Women have to prostutite themselves to get genes from outside). It's obvious that they would start enacting as soon as possible.
Plus, while the standard age of consent is 18 in Japan, the legal age is 13.
And it's not like a 14 year old boy can't impregnate a Woman (the youngest recorded Father in history is a 9 year old).