Everybody who doesn't ride a bike in the street seems to know for sure that it is terribly dangerous. I beg to differ. It is not dangerous, especially when done well. Car and cyclist collisions are in most cases predictable and preventable.
Multi-use Pathways, on the other hand, can be a jungle; you never know what you'll run into on the path. No Road = No Rules, man. If you don't believe me, check out this latest instalment of Encounters with Rantwick. I didn't choose the word "jungle" lightly... we're talking guerrilla warfare-style exploding devices, man!