An instate student could do that ($15k) or come very close at some flagships - Wyoming, South Dakota, Florida (especially at the directionals). California makes it do-able for low income students to attend the CSUs and UCs. If the student can live at home, even more savings. What the low income student can’t do is make any Dream School work.
In my case, I was able to pay for some of my kids’ costs, but I think more of my help came in finding them schools that do provide a lot of aid, staying on top of their college bills and the funds they are suppose to receive (I’ve spend HOURS hunting down scholarships and grants that didn’t get applied to their bills or didn’t get applied correctly), helping them figure out the cheapest way to buy books, travel, live, eat, how to get the best deal from tuition (take more credits?), even figuring out the taxes. I wanted them to be able to go to the schools they wanted to go to, and I couldn’t just pay sticker price so we had to figure out other ways to pay for those schools.