We get students’ tax returns to verify income and they sign a contract. What’s stopping them from not paying is the American contract law system which is severely underrated.
Our first cohort, for example, hit 100% employment.
In major tech cities (NYC, Seattle, Silicon Valley) the starting salaries are over $100,000, plus $20-40,000 in Restricted Stock Units, and $20-40,000 in yearly bonus.
Importantly, RSUs from public companies are directly convertible to cash once they vest (usually 12 months). Startup options lottery tickets are a different story.
See http://comp.fyi
I don't think people not looking for a job is a problem you need to heavily consider. Especially if there's a selection process for admission -- which the founder says there is.
Edit: I my case, I'd find an extra 2k/month attractive, and there are always new things to learn about software.