Today's multimillion dollar classroom buildings may be tomorrow's educational museums or homeless shelters. Where you learn doesn't matter. People can learn anywhere and everywhere. We already do. Most of the stuff that makes you a valuable worker you learned on the job.
Home schooling is a clue.
Students have almost nothing to say about the content or quality of the schooling they pay for. For their tuition, you'd think they would get the ability to thrive in their chosen profession, yet they don't. A degree can actually be harmful to your job prospect. The Labor Department estimates that 25-50 percent of college graduates will be underemployed, working in jobs of which their diplomas are irrelevant. The world doesn't want what they were taught.