You may be right on the percentages, I honestly do not know. Hell, I even take the bus to work, but in order to do so I drive my car to a Park N Ride lot. But, that's only for work, otherwise I drive. And even though I live in the fourth largest city in the country, I live in a rural area. I also require a truck. I tried living with a car, even a hybrid at one point, but it was not feasible, particularly for someone like me that prefers to maintain my own property rather than hire out for the work. Yes, I'm one person, but I suspect that my type of person is more than 5% of the population. This country will never be more than 50% combined/share ride, and personally I think autonomous driving is going to be more like 3D TV than not, at least in my lifetime.