A lot of extra costs to taxpayers to create a new DMV-like bureaucracy to administrate biker's licenses and biker testing, law enforcement overhead, judicial overhead, etc. I've voluntarily attended classes on bike law and bike safety, but creating a new bureaucracy to register, track, police and prosecute bicycle riders for riding bikes doesn't seem like the most effective use of tax dollars. I'd be in favor of a public education campaign on bike laws for motorists and cyclists, though.