Your argument has been around for decades. This already could have been and "should" have been done. There's no cultural or tech change Now that's going to spur it all the sudden. This is like complaining about gun control. Of course it makes sense and would be better for US - that's blatantly obvious, but to kid yourself into thinking that therenis momentum for such a change is foolish. Self driving cars offer a real chance for change. Embrace.