You can make anything work if you want to, I mean we used camp in tents, and sometimes no tent at all, just a tarp and a sleeping bag, A truck camper is much better than that, but be aware.....they are small, even the ones that are way to big for your truck, If you live in part of the country where they have some at dealers take along the grandkids and go look at one for an hour or 2, you will get the idea of what a cold rainy day will be like, Ours was nice for my wife and I but when we had more people it got close.......and we really really like each other.
as I said before it "will" work just don't go into it blind as to the size of them.
For us some of the big plus points is, park just about anywhere, camp in any campground, if you miss a turn they are super easy to turn around, they are just down right handy, I loved my TC alot more than my wife, she goes along with my motorcycle, antique tractor, gun thing without gripe, so I think I can give a little on the camper.