I think it's mainly a U.S. thing as their cities are designed around personal car usage. That leads to the separation of living spaces and facilities (i.e. the

I think it's mainly a U.S. thing as their cities are designed around personal car usage. That leads to the separation of living spaces and facilities (i.e. the anti-15 minute city) as more roads need to be built to cater for all the traffic which then leads to the distances increasing until a car is needed for almost every journey. Once you have cars dominating as the form of transport, it becomes dangerous to use other vehicles as most drivers will inevitably just be looking out for other cars and not two-wheelers.