I say unusual in the sense of Japan seems to be the only one to have solved the issue of how do you transport 2 kids on a bike not with "big box" like the dutch and subsequently the entire western world but via 2 seats, they're apparently very popular over there as a means of transportation.
deleted by creator
You mean that that's not the world you're in. There are plenty of countries where literally all of these things are the norm, and your experiences are a rare exception.
I don't think that helmets are bad or unnecessary, but I do agree that they are entirely ineffective against the things Americans will trot out the "should have worn a helmet smh" victim blaming for, i.e. getting punted by a speeding F150.
deleted by creator