Start treating drivers licenses like CDL's. If a driver losses their license, they are out of a job and just about any infraction can cause them to loss their license.
I don't mean they have to find another way to get to work, I mean they are unemployed and it will be that much more difficult to find employment again.
Crusier riders dress like pirates, sport bike riders dress like Power Rangers and adventure riders dress like Starship Troopers. Dual sport riders are just fashion disasters.