Firstly, we can save our environment more by using the public transportation. We could take trains, buses, airplanes to travel most parts in the world. Therefore, we should use the public transportation than private transportation, such as private cars, motorbikes, private jets, and so on. We need to reduce the gas that is emitted by the private transportations. If we do not make effort for the environment issue, the earth could be dirty and we might not feel comfortable to live on it. Therefore, we should use public transportation, such as trains and buses to reduce the amount of carbon dioxide. It could be a small step for us, but it would make a big difference in the future.
Secondly, we should focus on the cost of using the public transportation. It is much cheaper than the cost of private transportation. It would cost a lot to buy gasoline if we want to drive own cars. Also, there are other expenses, such as parking license, registration fee, inspection fee, and so on to own cars. Therefore, if you want to save money, it is wise not to own private cars and use the public transportation instead. By saving the cost of transportation, we could enjoy better meal, accommodation, or other services. If we have a choice between public transportation and private transportation, we should choose public transportation, because the cost is very different. We should spend least money for transportation.
Thirdly, accessibility of public transportation is good in large cities so that we would not worry about waiting for long hours. It could save time by using public transportation, because private transportation, such as cars need time to find a parking space. Comparing with