electrizer wrote:Is it viable?
Yes, but the risk is too great. First thing you need to do is get several years of teaching experience. You might hate it. I did quite a bit of teaching many, many years ago, both privately and through some drum shops. 90% of the people I taught didn't put in the effort that is required to become a decent musician. Of those, at least a third were very young kids who never practiced and/or were forced into it by their parents. I think the ones who are super serious end up going to college for music.
Bottom line is that it can be very frustrating. It's possible to do, just like it's possible to be successful in any business if you're smart and do the work. I think you need to figure out if it's something you will enjoy first though.