We have an MUP here in Okeechobee called the Lake Okeechobee Scenic Trail (LOST) that I tend to ride every weekend. Early in the the morning is best, as the kiddies are all still in bed and the walkers are not in packs. We do have two pretty good looking girls in the area that put their ear-buds in and roller-blade side-by-side, in sync and can take up the whole path. Back when I had my catrike I rode up behind a guy on an expensive two wheeler, who was trying to get their attention so he could pass. He finally dropped back and was riding their pace, and swearing to himself. I rolled up next to the one on the left with my trike, and poked her in the leg with my finger to get her attention. When she realized traffic was stacking up behind them, she dropped back behind her friend and let us by. Seems like adults could pay more attention to what is going on around them than they were. I have met families out there with a pack of kids on various sized bikes (with and without training wheels) and to get around them can be a real nightmare, as they just CANNOT pay attention to what they are doing and use the whole path. I too have had several close calls with kids on bikes with 12" knobby tires on this MUP....
Tractor Tom in Okeechobee, FL