It's kind of like telling farmers they have to fence along public right away and not let their cows wander.
Or the use of a public dog catcher to catch strays before they turn into road kill and bloat up spraying the neighborhood with puss and stuff.
I do understand why cyclists would rather let the animals just blow up, but that's not the way I ride.
Sanitation? First time I've ever heard that argument. I'm sure if I ask a rider about why they must wear a helmet, they will answer right away with "because of sanitation". hmmmmm
Just in case you missed this unintentional guffaw:
“spraying the neighborhood with puss and stuff.”
The mental image is priceless.