Well,first,i think the bicycle sharing is a much cheaper way for traveling in the cities.And it is more eco-friendly.It can reduce air emission and it is benifical to our envirionment .Another benifical is that the bicycle riders are less affected by the heavy traffic . It reduces the traffic congestion and traffic accident.And it is also good for our heath.Riding a bike is a kind of regular exercise.Dispite those benifits,some people are still not favor of riding a bike ,because riding is much slower and not.suitble for a longer trip.Driving is rather more convinent and confortable.You can go anywhere you want, although you have to pay increasing foil cost and parking fees.