I couldn't tell you to go or not to go without knowing more, but I can tell you this: If you can get to the end of your life without the regret of not flying then run as fast as you can the other way. On the other hand, if you will regret not pursuing it, always wondering what if, then GET MOVING! I'm mid-40's about to start the CFI thing, total career change, but excited about the future because I'm chasing a dream I've had most of my life. People can say what they want to about not being able to get to the majors, etc... but I believe in a God that can open doors that leave most people saying "impossible." I guess the question you need to ask is "How big is my dream?" (if it is your dream) If the dream is big enough, the facts don't count!