Trying to train someone in a hive that does not have a basic knowledge can be frustrating. Really, some people are difficult no matter how you try to teach them. I won't teach adults anymore, my first attempt was a total drain and time waister. I would rather teach my students who would never get to experience small scale agriculture otherwise. With them, all my teaching is hands on.
I also agree that as far as hobbies go beekeeping is cheap. I know people who are very happy to loose half of their bees and replace them with packages every year, and use honey sales to re-coop. Many people are happy to sort of make it at something. Where the time commitment comes in is when you are not satisfied unless you excel.