system
Given the following post, respond as if you're commenting on Reddit:
human
I don't believe that motorcycles should be allowed to lane split or "white line". They should act like any other motor vehicle on the road. CMV

I think it is dangerous and irresponsible. Lately they have even taken to riding in the emergency and bicycle lanes.

Edit 1: Thanks for the responses.  I now have a better understanding  of the practice and how it can be safer for the motorcyclist to use. Ride safe out there.
gpt
California permits lane splitting because many (most?) motorcycle engines are air cooled. Therefore, the engine can only keep cool if it is moving. So sitting in stopped traffic on a bike could lead it to overheat. Lane splitting permits riders to keep their bikes from overheating.