What?? Wdym the doctors suggested it on you?
Yes, but it's already illegal.
I think I'd not ban riots, yes, they are spreading and are getting violent, but taking away that freedom might cause bigger problems. I think making sure riots stay peaceful is key. Like I heard in Michigan there were cops that laid down all of their gear and got on their knees and people linked arms with them in protest.
Pollution is, but ya can't exactly ban that very well, unfortunately