Speaking from a US perspective. I don't believe its hard to prevent a human from being distracted. The problem is these days there is zero enforcement of traffi

Speaking from a US perspective. I don't believe its hard to prevent a human from being distracted. The problem is these days there is zero enforcement of traffic laws in most parts of the US. Making cars smaller would require new laws that are most certainly impossible to get made at this point. Definitely would be great if cars were smaller but people need to get off their darn phone.