This model works well if you're a single person traveling alone and have relatively few things you need to transport with you. In other words, the current "hai

This model works well if you're a single person traveling alone and have relatively few things you need to transport with you. In other words, the current "hail a taxi" model. It becomes less workable when you need to travel as a family with kids, car seats, strollers, other equipment. Having a dedicated vehicle that belongs to you and is always at the place where you left it is immensely useful in these circumstances.