How many billions of both private and public funding has been put into public transportation solutions and technology instead of self-driving cars? The answer i

How many billions of both private and public funding has been put into public transportation solutions and technology instead of self-driving cars? The answer is basically 0. Self-driving cars is the most expensive Hot Wheels experiment ever. It's been well over a decade with barely anything to show except that they've replaced cars with more expensive cars that have muddy responsibility.