Aren't they only like 18 or something?
No? They finished high school around 18-19, and are curently on their 1st or 2nd year of studies. That's around 20-21 yo. Also, their school is in the countryside. People have offspring by that age the further they are from main cities.
Still seems early
Japanese government propaganda to make people want children.
my mother had me with 21
nothing wrong here if they have a job and house
Who has that at that age?
sause, and yes i did reverse image search
My mother didn't have me until she was over 30.
Boku no golden palace