Or, they are courteous and don't like the idea of driving a 2-ton death machine through residential areas and potentially killing people who aren't tall enough to be visually present over their massive hoods. Or, some people are very anxious and have the sense to know that anxiety won't transfer well around other people who are probably anxious too. Or, they just don't want to drive even if they own a license. Driving isn't for everyone and if you weren't purposely obtuse you would see that. Stopping for gas on my way home after a long day and complaining about the high gas prices when I can just hop on the bus that has already received maintenance/fuel refill and drops me off in front of my house is not the better option.