Earlier quoted context omitted.
Forcing bicycles to follow rules designed for cars is often silly and sometimes actively dangerous. For example, the bike route from downtown to my house involves making a left turn on a busy street. For a mile and a half, the street is nice and wide, with generous bike lanes in both directions - sensible and safe. But the moment I have to turn left? By car laws , I need to stop in the middle of the road, with traffi…
Your u-turn sounds legal, even in a car, but I'd have to see the area and know the state to be sure. Regardless, bicyclists are already required to follow the law. Having a required license would simply help make sure bicyclists are aware of the law and provide a tool for law enforcement to keep the most egregious offenders ( e.g. stop sign runners, cyclists traveling against traffic, etc.) from causing problems.
Law enforcement can already ticket a bicyclist, license or no license. Bicyclists already know when they're breaking the law.
I disbelieve your proposed solution would actually solve any problems.