I don't know what exactly it would be but surely the answer isn't to just have pavements literally covered in shit.
Nearly every time we leave the house one of my kids seems to step in it.
Yesterday my eldest was playing football in a fenced off grass area at the park where dogs aren't supposed to be allowed, picked the ball up and got his hands covered in poo because it had rolled into a poo...gross
I can't even easily clean it off because I don't have a garden or anywhere to do it and the thought of bringing dog poo inside grosses me out.
the pavement all along the way to school you can't even walk two metres without coming across a pile of dog shit. All those kids trampoline it into the school carpets- yuck