Tuition caps are being set all over the country. But at the same time, that's easier for a state to do than for the federal government to do and with tuition caps, states are less able to subsidize the education of in-state students off the backs of out-of-state and foreign students (but only certains schools are capable of doing that anyway). I am not against them. But that does nothing to solve the problem of the average recent college graduate rocking 27k in debt. A large portion of these people are over 30. I'd suggest you go read up on this bill before you come in with your judgments because it's obvious that you haven't read this bill or the highlights. Just your usual predisposition to your own anti-empirical and anecdotally fueled opinion.
Furthermore, with the implementation of programs designed to educate students on the return of their investment, and other rating systems, individuals will be more aware of what they can potentially get back from those degrees and will naturally gravitate towards more affordable options. We have already seen this occur with the increase in information about law schools, individuals are either not going, or going only when they have sizable scholarships or are going to top flight universities. The result is that lower-tiered schools are struggling to fill their classes. People will respond to the information if it is publicized enough, and it will be.
BUT I can't even

your comment about stimulus enough. To think that you would play a semantic game and try to somehow equate the basic concept that young people and young couples and families--when they have the disposable income--are the most prone to spend, with economic stimulus in a more top-down sense is remarkable.