Most prefer to own a car for private use only

My recent poll on car ownership vs sharing generated some significant interest. 

​According to Diess (CEO) VW just acquired Europcar a car rental business to help with autonomous driving, and the idea that lots of people will share cars in the future: 
‘Robotaxis will play a major role but also private cars are going to be shared’

My poll suggests not all people agree with Herr Diess