Hey Capt, you make me laugh!! I will be getting the CC myself over the QC because of me always having adults in the back.What he said.
A crew cab is a large with car with a smaller truck bed. A quad cab is a truck bed with a smaller rear seating space.
I have had quad cabs for 20+ years. That's because I just keep hunting and fishing gear in the back seat or haul coolers, storage bags etc. If you have to move people back there it will work. Children fit in nicely. Adults also fit. It never bothered me to haul a couple guys to the restaurant at hunting camp or the local gun shop. If adults want to go farther I suggest they get a good job and buy their own truck.
Cramped for adults in the back never bothered me up front.