Hey, Jeff, do it! I was 40 when I started university--didn't do the online thing, went bricks and mortar and was absolutely terrified walking into my first class (English 202) which was packed with 19 year olds. They all thought I was the instructor--doesn't matter, it was awesome and now, 4 years later, I'm in grad school, teaching a freshman class at the same time and getting paid for it--now when I walk into the class, I really am the instructor and absolutely love teaching...Follow your passion, and you'll find a way to make it pay.
Sounds hackneyed, but hey--its the total opposite of what the Society tells you to do so it's got to have merit!!!!