Starting from about age 10, our kids always stayed in a large tent. Staying our trailer wasn't an option. They loved having their own space and being able to bring their own stuff and friends.
Our kids are adults now. Last Memorial Day, our son and his friend came camping with us and were going to stay in a tent...until it poured. They ended up sleeping in our 25' trailer with us. One on the couch and one on the dinette. I hated it. That was the last night we spent in that trailer and we upgraded to our current rear living 5th wheel. Our sons slept on the new sleeper sofa one night (it was awful), then on the floor one night. Know what he asked me the next time he camped with us? "Where can I put my tent?"
Having kids sleep in the living room (and all of their stuff) isn't ideal. If you can afford and tow a nice bunk model, that's where I would lean, especially if your kids don't/can't tent camp. Keystone Avalanche makes a couple nice models that have a bunk room with double slides, a living area and a nice master suite.
Shannen and Rick, empty nesters and loving it!
2015 Keystone Cougar 333MKS
2005 Chevrolet 2500HD Duramax