If you just want to try something that doesn't work, why not legislate touching grass every morning without all the downsides of a dumb blanket ban?
Like do warnings on cigarettes work? I definitely saw a guy move cigs to older pack he had from china because he didn't like ugly warning picture on the new pack. Do mandatory id checks work? If I saw some kids get their hands on smokes does it mean "it doesn't work" and therefore there should be no limits on big tobacco?
is a start