Hello, I haven't taken the freedom invoking move of getting a RV yet but am in that first steps area. I am 29 and my gf is 30, we are both at a stage in life were we don't have a lot tying us down....
Do it! We fulltimed for a year when we were in our early twenties. We had a wonderful time, saw more of the country than any of our friends or family and learned a lot about ourselves and what we wanted to do with the rest of our lives.
For all the people worrying - this kind of decision is not something that is permanent. Going back to a "normal" life is possible just a little bit hard after tasting the freedom of fulltiming.