Sure. It's a tough question, though; morally, yes, cars are physical objects and typically well-regulated, but self-driving cars are enabled by software, which tends to flout legal demands. I hope in this case that the sheer physical presence of cars will enable regulators to ban unsafe vehicles from public roads, but it's not as clear-cut as we'd like.

I mean, you say this as though Banning Self Driving Cars is some controversial policy action, rather than just literally the current state of the law in most areas. The point is that it's weird to legalize them when they're not ready for prime time just because you figure "the future is coming," because usually we make laws around technology based on how the technology works in the real world, not how we figure it'll probably work in the hypothetical inevitable magic techno-future.