Agreed. I also think another big reason for personal car ownership is having kids. With the increasing ages/weights recommended and/or required by law for car seats, that can be a hassle if trying to use a ride sharing service. It increases difficulty with increased number of kids at varying ages. For those without kids, while it's not crazy difficult to install a car seat, it can still take upwards of 5-15 minutes (depending on the style of seat). This amount of time lost can be a big hindrance.

Yes, I know that Uber has started to tackle this problem, but as far as I know it only provides 1 car seat, and a car equipped this way may not always be nearby. Maybe this will be a completely solved problem soon, which would be great!