Many (most?) places in the US have outright bans on wearing masks in city/county ordinances, sometimes with exceptions for children or Halloween, sometimes not. Those laws were basically ignored for covid though and I know several people who found masking extremely beneficial for cold weather or allergies and they'll keep masks on hand for those circumstances.
No matter how popular that becomes I suspect it'll turn into something that police will enforce selectively whenever it suits them rather than those laws going away.