What are the actual statistics of accidents between bikes and other users on narrow trails. All this hullabaloo and signage and the fact is that nobody ever runs over anybody. Yes, people irritate each other. Yes there are jerks of all persuasions. Yes, life isn't perfect in the woods.
People make mistakes, act poorly, and are selfish.
However, those are not arguments against sharing trails. Those are arguments for birth control, prisons, better schools, or a return to religion. They aren't appropriate arguments for trail segregation. Trail etiquette is basic and simple. I need a simpler, workable, policy.