That would be great, but people would bring even MORE lawsuits as a result! I don't want to get everything I own taken away because I didn't see some motorcyclist coming when I make a turn, and then, what would have been a simple laydown by a rider wearing a helmet and leathers, he gets brain damage and his relatives sue me for everything, all because motorcycles are HARD TO SEE, and if reasonable safety devices had been used, it would be a relatively minor incident.