I think flying is an easy and fast way to travel anywhere in the world, just fix the place you want to go and in a few moves you have already bought the ticket.
Know that age is just a number, you just have to believe and want it, the rest comes by itself.
There are so many destinations just a few hours away where you can walk safely.
I remember three years ago when I was on holiday in Mamaia and from there one day I took the car and drove to Veliko Tarnovo, but you don't want to know how much I made on the way, I wouldn't drive there a second time.