> which likely come from drug users

OK, come on, you don’t know that. I doubt we have any serious data that bodily fluids in public bathrooms are likely to come from drug users. And if you’re cleaning it up, presumably you have equipment and are not using your tongue, the residual drugs won’t jump on you. Don’t stigmatise hard drug users, many of them (maybe most) were given a rotten hand early on and now want help. Policies such as Portugal’s decriminalisation have shown we can make a bigger difference when we treat those people as people.

Either way, the point of your parent comment is that most people don’t even pick up trash, which is itself a problem.