Yes it can be done and there are many doing it, but sounds like you are going from one extreme to another. We were always tent campers and We pretty much decided tents are only for backpacking trips and then we moved into the TC. Not sure if you will like going from a 40 footer to a 10 footer :). I think you just have to gauge your family and see if you can all live in eachothers space or not.
On another note... Silver strand state beach in CA only allows self cotained campers, and no Tents.
No tents link...but you are basically camping in a parking lot.
