You are NEVER TOO OLD
/My dad at the age of 83 just purchased his first UTV. A Kawasaki TRex 4 seater. Its awesome. He is a very good driver and I think having foot pedals for gas and brakes and steering wheel is helping him as its just like a jeep or truck or car.
so don't wait any longer. These are tools to get you back in places you never could have before and see some wonderful scenery.