I am very interested on a personal level in fitness and nutrition, however I have no certifications or background in either field. I am 55, in good shape physically, workout out regularly but do have some “normal” issues like arthritis that can come with age. It seems that there are so many PT’s out there and most/all seem to be young and in super shape. With these resources for clients to choose from, would it make any sense to pursue an education in either/both fields with an eye towards trying to it for a living some day?
I completely agree with all of the answers above, and think you should do what you are truly passionate about. You will be well received by the people who seek personal trainers. Those people are real people, who need someone they can relate to.
I hope to be a personal trainer until the age of retirement, hopefully well into my 60’s!