Thanks though to my Mum’s immortal line of “do you want to be laid on the road smelling your own brains?”, I wear one.
You have just reminded me of one of those expat oddities from my past.
He was American, lived in the same small town as us, worked at the local uni, he was about 6’7″ and skinny as a skinny thing.
He also wore a full face motorbike helmet everywhere, on his motor bike, on motorbike taxis, while walking down the street, around the uni ground, he took it off to eat, and teach. I assume he didn’t sleep in it.
Great big white thing with his blood group written on the outside of it, and emergency contact numbers.
He was only in town about 6 months before he ran/moved on.