The main reason for me is that 90% of them ride on or very near the lane/shoulder divider, putting their handlebars firmly in the vehicle lane. There's a fair

The main reason for me is that 90% of them ride on or very near the lane/shoulder divider, putting their handlebars firmly in the vehicle lane. There's a fair bit of anxiety running the mental calculation of how much margin is between my left side and oncoming traffic, and my right side and those handlebars, at 60mph. Is this the day I die in a head-on collision because this asshole can't be bothered to utilize the other SIX FEET of the shoulder? Otherwise I don't mind them at all. It's just the entitled attitude of "I'm going to endanger us both by riding as close to you as possible, and if you clip me, it's your fault, because the law is on my side". The shoulder is typically 6-7 feet wide. It's paved just as well as the rest of the road (better, in fact, as it tends to be worn down less). There is absolutely NO reason for cyclists to ride on its edge rather than its center, other than ego and entitlement.