Agreed, I am not a proponent of government guaranteed student loans and you're 100% correct they are an example of government gone wrong at the expense of both the student and taxpayer.
You obviously value education or your wouldn’t pay the private tuition for your kid…but it sounds like you are advocating for no tax funded (public) education for k-12 because it is a bad ROI, which would leave only private educations which are a financial burden to you and probably out of the realm of possibilities for most families.
I think this desire to reign in spending to make sure we find a way to do it effectively holds regardless of one's belief in which particular education we are thinking about funding. You wouldn't start throwing more money at a problem until you understand what is going wrong and have a suitable plan to fix and and witness the managers of the money are acting accordingly.
The main reason education is so expensive for a toddler is because of government intervention, such as childcare ratios and regulations regarding the facilities and licensing. If I lived in Idaho (the only state in the nation which has no such government regulation) it would be significantly cheaper.
The government runs the collegiate tuition systems through a guaranteed student loan program.
What the government didn’t do is regulate the universities and say if you accept students with federal loans then there is a mandatory cap on your tuition prices, instead the government said charge the students what ever you want wink wink and we will give them the loan.
Unfortunately this has runaway to a $1.5T national student loan debt, and debt that will follow students around for the rest of their lives if they are lucky enough to keep up with payments. However, 1M student loan holders per year weren’t able to keep up, and that was prepandemic, since the pandemic the numbers of student loan defaults have been manipulated through policy (including the various stimulus bills) as well as just failing to report the loan defaults.
If you don’t want government involved in university monetary/fiscal issues then you more than anyone should want to reform the current system of pay to play with guaranteed student loans.