There are two types of people that fukk in public places,
Kinky sex fiends that like the thrill of doing it in random places. and Losers/kids that don't really have a place of their own that they can bring a women to.
Generally i expect young people to do shyt like this because they have no privacy at home, so they just gotta sneak one in whenever they find themselves alone. I get it, we all been there. I've gotten caught with a girl in the back of car. thats normal life shyt.
Grown people only get a pass if it's in a location where you could imagine kinky people would want to do something like, examples being like a hot tub in a resort or on a beach or some shyt like that.
but doing it in a nasty ass toilet or grimey subway platform, strikes me as some loser shyt.