Indeed, my country, Canada, has allowed women to go topless since the ’90s. This was seen as a woman’s rights issue when Gwen Jacobs took her top and bra off on a really hot day. In practice, however, no Canadian woman actually takes their top off in public unless they are breastfeeding. I heard stories of women asserting their rights in the nineties but being hounded by a gawking horde of men nipped this in the bud.
Perhaps the joke could be made about Canada instead. You know something like “going topless in the Great White North puts the cans in Canada”. Feel free to make it into a cartoon.