I have an idea for a setting you might call 'Girl Factory'. As you may know, birth rate has been dropping in most developed countries, getting below replacement levels in some. It also looks like the normal age for the start of adult behavior has been rising.

After reliable artificial wombs are invented, some countries enact a plan; Institutions both government and private would grow and raise children en-masse, teaching them to be model citizens. At least two girls are raised for every boy; Maybe polygamy is being adopted by secular people, maybe artificial wombs are considered inadequate somehow so the next generations are raised with help from the first.

There is no quick aging here; They spend their nine months in the womb, then grow at the normal rate. However, their upbringing prepares them to be independent and navigate the outside world earlier than normal; Enough for most of them to become legal adults in their early teens, supposedly like in the old days.

At least, that's the theory. But their inexperience and still-developing brain are not conducive to long-term decision-making. So you have lots of girls being sent out into the world who are used to being told what to do, and to considering the desires of others over their own. Overall, they are eager to please and to be useful to society, and often make commitments they don't quite understand.

Some of them have taken service jobs, comfortably seeing themselves as once again part of an institution. And many have been talked into slavery contracts, or accepting their death for the pleasure of others.