Personally I'm against fees for human powered anything. First bicycles then canoes/kayaks, need to feed the .gov monster...
You missed the point but I suspect you are ignoring it, no big deal I might be wrong. I pass cyclists that are on the side of the road and give them the proper space. It's the ones that ride three across, not stopping at stop signs, crossing lanes without notice. If licensing stops this behavior then I'm ok for it, but it won't.
Back to the regular program...
How long do you think someone would live if they regularly ran stop signs, crossed lanes without notice and constantly blocked traffic on a 17 lb vehicle?