Jock Nanny?

Why don't city owned basketball, football, and baseball fields have a coach nanny on staff making you sign a waiver and wear a jock strap? For some reason, cities today still think pad nannies are needed for skateboarding. Apollo Beach is next up to be forward thinking enough to build a skate park, but keeping roots in gub'ment assbackwardsness and making it fenced in with waivers and pads required. Oh well, here's the preliminary design by Team Pain. Looks pretty good, you think?