Please remember that as far as maneuverability goes, it is usually NOT the dual rear wheels that makes the difference.
LENGTH of the vehicle is the real problem, and this exists for both single and dual rear wheel vehicles.
Considering most pickups sold today are crew cab versions of some sort, adding in either short or long box onto that makes for a long vehicle, irregardless, as I said, to dual or single wheels in back.
And it is usually this length that makes it tough to turn into parking places.
My last four pickups have all had duals. I do love the fact that the last two came with backup cameras, which really do help. I try to back into most parking spots if possible, or pull through so I can drive out instead of backing out.
And I've even gone through a few drive throughs with my trucks. Here, I tend to be pretty choosey on which ones I will use, but fitting in was simple.