“With so much planned volatility in the job market and the fact that most of the manufacturing jobs are NOT coming back, investment in specific educational industries is growing.” (Justin Cook, the co-founder of Empire Flippers)
He might have a point because I can remember a time when people looked down on vocational and technical schools compared to a four-year University Degree but I believe that is changing. Because Employers want people with applicable skills, that technical schools can provide.
Many of ideas mentioned about creating content businesses around the retirement community would work for technical schools as well. As the trend continues to develop, there will be opportunities to help students find the best schools where they can learn specific skills. You could create a blog, or an interview podcast where you profile experts in niche fields, then monetize through referring students to programs and making affiliate sales.