This kind of argument might hold water if there were an epidemic of 12 year olds aimlessly drifting across the countryside with no adults taking care of them. But there's not, and you're not really making any point.
If you are assuming a guardianship role over a child, however temporary, you have a responsibility to teach them things, full stop.
I've known several foster parents over my life who would be outraged at the implicated that they are somehow lesser to the children they raised and are raising.
I think I mistyped what I mean. I meant people who were raised without parents in orphanages not foster care. Excuse my mistake and sorry if anyone felt anything negative from my comment.
And yet kids from foster families tend to have massively worse outcomes than others.
The US is obsessed with racial inequality, but from your life's perspective, it is better being black than being a foster kid, and no one bats an eye on the latter. Harvard won't certainly introduce any pseudoquotas on foster kids anytime soon.
If you are assuming a guardianship role over a child, however temporary, you have a responsibility to teach them things, full stop.
I've known several foster parents over my life who would be outraged at the implicated that they are somehow lesser to the children they raised and are raising.