Go to school on foot?

Many students go to school by taxi, by bus, by car or by bike, but only a few students go to school on foot.
I think going to school on foot it's is better than others ways. There Here are some reasons.:
First, students always have no time to do play sports because the busy school living (you can say "because their school lives are busy" or "because they are busy with school"). Going to school on foot is good for student's students' health.
Second, the environmental pollution is more and more serious today, so going to school on foot is green. It's a kind of ways to protect the environment.
Third, going to school by taxi or others ways will cost parents' money,. It's not easy for parents to make money, so going to school on foot also helps us save money.
Go to school on foot, maybe it's the best way for us.

You can try instead: "Going to school on foot: maybe it's the best way for us." or "Going to school on foot may be the best way for us."

I agree! I lived an hour's drive away from my school, but I really wish I could have walked or biked every day. You list very good reasons for encouraging people to walk to school. :)