to turn you statement around, for a bunch of kids fresh out of high school getting their first dose of political reality, "you are going to be about $50k in debt when you graduate because your elders and betters have screwed up the economy so badly" is a pretty poor payoff for the last several years of academic effort.
If you want something fund it with your own effort, not by pointing a gun at someone and telling them it's good for them.
I have extensive first-hand experience of barely scraping by, and reject your analogy of 'pointing a gun at someone'. For things like education and healthcare (which liberals like myself believe to be worth public funding), some compare it to sticking up the weakest and poorest and taxing them farther into poverty, whereas the reality is that those services, which are almost essential for economic security and advancement, are stuck behind a big paywall and those who object to the existence of this wall have guns pointed at them. Yesterday, literally so, in the form of riot guns.
High school graduates have the lowest earning power and the highest rate of unemployment. I don't see the social good in saddling them with tens of thousand in debt so that when they graduate they are forced towards the most lucrative offer. That's how we ended up with a shortage of scientists and engineers and a surplus of quantitative analysts on Wall Street.