I continually come across parents who request a ride with a young child (under six years) and don't have a car or booster seat. If they don't have one I refuse the ride. Besides, I don't want to take the chance of some kid flying through my window if I get in an accident.I don't have a big enough trunk to carry one around nor do I think I should have to shell out up to $200 bucks to accommodate lazy parents who don't want to carry one around. I thought of getting one and then charging $5 bucks but I doubt if anyone would want to pay when they can just call another car that doesn't require it. Uber needs to email pax to let them know they need to have a car seat or booster for the drivers.