When riding in the road riders should follow the same laws that apply for cars. Police should fine them if they break the law or take away their driving permit/bring charges, just as with cars. Some riders are very unresponsible and outright dangerous. Especially riding up to the light in a light controllet intersection, bypassing the line of cars, is dangerous. You never know if the driver besides you noticed.
Multi-use paths are dangerous. Usually there are way too many intersections where cars have to cross and the drivers never notice a bicycle coming along. Lots of accidents happen that way. The layout of multi-use paths are usually laid out for walkers, so bikes have to accelerate/brake all the time or get off to cross roads while walking the bike. Not very efficient for those choosing to travel cleanly. In addition the maintenance is much worse on those compared to pure bike lanes. Riding multi-use paths without suspension is hard on me at least and often there is glass or gravel in the lane as well. Sad but true.
