Me.. maybe occasionally. Go get the mail, some simple (non dangerous) yard work, maybe even playing in the sprinker with friends and kids (and we have as a multi family going, have gone to clothing optional beaches/resorts/camps at time, some time going full bare, other times not).
Cavat; assuming the law also includes anti-obscenity. Men with the accidental hard-ons do their best to cover it up or just sit it out, sex and mutual massterbation is frowned upon (like most EU states where public nudity isn't quite illegal) and anybody who tries to overly present themselves to children is punished.