We should travel by bicycle ? Why/Why not ?

We live in an age when many of us are preferring to use modern transportation such as cars, motorcycles or electronic motorcycles. Although using the above means of transport is very good, it can cause many problems. For example, we maybe can have an accident or the smoke that comes from all of the modern transport will make the air become polluted. One solution to this problem is that we can use bicycles to travel outside. In this essay, I will show you why we should use bicycles. Firstly of all, it is wothering that nowadays most of people use vehicles that emit fuel such as smoke and gasoline. So that the environment can be polluted or we can see it is air pollution. According to the experts, there are nearly 78% people that have a problem with breathing and allergy are comes from air pollution. So that if we use bicycle, we can reduce the smoke and make our life become clean and green. Secondly, using bicycle can also improve our health, can get for you a new habit. Last but not least, bicycle is so cheap so that everyone can buy it. Then we can have a bicycle for our own life, make the environment become better. To sum up, using bicycle is good for our health, make our life become pure. However there are a few difficult things to use bicycle outside the normal life such as we don't have private road for people who use bicycle, but I think in the future, the government will do it and make our life become convenient.