I look forward to people telling surgeons not to bother masking up when they go for surgery in the future. I. Sure that will work out great /s
Anecdotally, in London, I saw lots of people wearing masks in an obviously ineffective way on the Tube (e.g. not covering their nose), and lots of people wearing basic cloth masks. So what are you going to do? Arrest all these people? There are limits to what you can realistically do in a non-authoritarian society.