The question you ask "Is 26 too old to go back to school?" almost sounds like the one I have heard: "Are you a professional student?" In either case, when people say these things, they are saying that...
I am somewhat familiar with Rad Techs from the other end of the spectrum. My MS is in Medical Physics. I'm deciding what route to take now.........nursing, rad tech, med school. I can't get a job...