I started camping with my parents first in a tent then in a 1958 Tour-a-home stick built Trailer (a trailer made with a wood frame covered with aluminum sheet). The Tour-a-home was a park model, that is, it was built only for connecting to utilities in an RV park. My dad modified it to be self-contained, installing gas and water systems.
Our family of 6 toured the country from Maine to San Diego and we loved it.
My wife came from a tent camping family. We started together in her old army surplus wall tent then in a newer tent. When our kids were early teens, we decided we wanted to show them the country so we got a popup tent trailer to make it faster to travel, and it worked. We used it for about 15 years. We went back to a tent for a while but our old bones wouldn't take it anymore and we started looking again. We rented a stick built trailer and decided it was not for us. We looked at many alternatives then bought a vintage stick built trailer which we restored and modernized, and used for several years. We took a longer trip and decided we needed something with a bathroom and that wouldn't take so much maintenance. We almost remodeled it to install a bathroom but realized it would take more time to keep it up than we would spend camping.
We looked at Casita but they felt small inside and funny with the carpeted walls and almost gave up on small trailers. We looked at a variety of other trailers. We happened upon an Escape in Great Basin National Park and visited owners of 17b and 19 models and settled on the 19. We chose it because it was towable by our TV, a Jeep Grand Cherokee V6, and provided all the features we needed and some we wanted. Our trailer will be delivered in May, 2015.
Retirement is great. We bought a travel trailer and are exploring National Parks. (Actually, we bought one and sold it and bought a second one better suited to us. It happens...) And I have time to do some woodworking projects and things around the house. And now I have gotten interested in ham radio so there goes any free time.