Why wouldn't a family have three cars in the garage? One for you, one for you spouse and the one for the kids to get to school or soccer practice or even their friend's house to play after school? Sure it's "inefficient" but the time efficiency of having a car ready to bring them home the instant you call has a premium value to many. if you take the driving out of the equation, I expect the average car becomes dramatically less expensive, performance is purely there for human emotions. Lower the car price and we will simply buy more

there are lots of places where people don't take public transportation now, why is that going to change? So long as work schedules are similar and eating times are similar it seems like there is a queue theory problem with your community pool.