Originally Posted by Cyclosaurus

Driving your car at 60mph through a residential neighborhood is also a stressful experience for everyone involved. The same patience and self-control that drivers should exercise when sharing streets with other users, is what cyclists should exercise when sharing MUPs with old people, people with strollers or walking dogs, small children weaving back and forth on their bikes, etc. It's great that MUPs are a kind of free-for-all.