RE:RE:RE:Seatbelts , then airbags were mandated . I understand what you're saying and, I hope you're right. Perhaps these companies are still quite a distance behind Tesla but, they are still there: Waymo - Cruise - Zoox - Motional - Aurora...
Motional is linked to Hyundai and Aptiv. Cruise to General Motors so, these are some significant players in the automotive game. I agree though that Musk is at least 5 years ahead of everyone else.