That's the problem with you Socialists... the cost can't be zero. The government will funnel even more money at the issue, and that will only increase the costs. The more easily money flows into an event, the more that event will end up costing, since the people owning the event and arranging the event are always greedy and will take more money if they can get it from their demands.
So if Sanders made "college free" then that would only mean the colleges and universities would feed off of a stream of public money which would double the 'costs' per student.
You only believe that's good since poor people won't 'see' those costs. But every taxpayer will. In spades.
And here's another thing: College still won't be 'free'. The gas to get to college won't be free. The books won't be free. The meals and housing won't be free.
Some extra fees will always be laid directly upon the student. For example, when I went to college, I went while in the National Guard, hence I got a "tuition wavier" for attending a state university. Sounds great, right? Except by the time I was using that waiver, the tuition for each semester was $X and the set of fees applied on each semester were close to $X. In other words, the university doubled the cost of attending university via "fees", probably to make up for all the people who had tuition waivers, and in fact for all the people whose tuition was paid so easily by other people.
Greed will always rule. This is a Human truth. Hence making college 'free' will only drive up costs beyond what's already being done. It will SHIFT costs, true, but costs will still RISE.
