Earlier quoted context omitted.
Private high school costs have also gone up astronomically and there are no federal loans for them. [0] https://educationdata.org/average-cost-of-private-school
Where does it say that? Btw private school looks quite affordable. I used to think my neighbor was rich, they were, but for only $20k/yr you can send 2 kids to private school? That is cheaper than daycare.
If you're paying $20k for private school, and there's a free option (public school) - you obviously have a healthy amount of disposable income.