People who write these reports seem to be ignorant of the diversity of the automobile owning public. Does no one live in suburbia or have kids? The idea of sharing a car just doesn't make sense. it's part home / workshop / storage area. Maybe innovation solves this. Your rental minivan will dump its pod of crap at your house when it drops you off and picks it up when you call it.
Yes, if you live in a dense area this stuff makes great sense. But how do you deal with these use cases:
1) Follow behind your kid on halloween 2) Casually drive anywhere and pull over to watch the view. "Alexa - pull over at that little turn off." maybe?