So much depends on where and how you camp. I have no problem winding through city streets to find a quilt or gun shop. I have towed my 25 ft. TT through mountains and deserts it is the perfect size for the two of use.
Fortunately, our grand kids are grown and prefer to sleep in tents outside rather than with those old people who snore. :) :)
If I had kids I believe I would look at something longer rather than bunks in a 25 footer. But when I was younger, it was canoe and tent wilderness camping for the family.
I cannot say I have ever personally camped in a spot that did not allow large units. I have however camped in spots the should not have allowed large units. Sardines had more room than some of the camp sights we used out West.