Ride your own ride, and don't worry about it. If I worried about being odd (considering I am usually barefoot, riding old steel, often without the usual cycling shorts/shirt) I'd probably worry myself to death.

I typically ride the same rail trail most of the time. It's rural though so perhaps a bit different than your typical MUP. But I can do ~56 miles on the paved rail trail that runs near my house, all free of vehicle traffic accept for the few road crossings. And a short .7 mile ride through a small town onto the next section of trail pushes that distance even more, but rare I do more than 50 miles. I don't like competing with traffic if I don't have too. I do also have MUP near both my work locations though, I do ride those sometimes for a change of scenery (and to use time to get me around rush hour traffic).