oh, it's illegal where I live. But some people pretty clearly ignore that. Enforcement doesn't seem to be a thing. I think this is one of those laws that falls into the category of things that we just have to rely on people's good will to carry out. Like small-time littering and not cleaning up after your dog, some people just don't seem to care.

FWIW, I think - based on not feeling my throat close up most of the time - that the number of people who do this is small.