About my keitai

I bought a mobile phone first when I was elementary school student. I was about 12 years old. From then, I use the mobile phone every day, so it is very important thing for me. But, mobile phone have not only good things but also bad things. For　example, mobile phone take a cost. It take about ￥5,000～￥10,000. Some people take a cost more. It is very "mottainai". And mobile phone cause dangerous incident. For example, it is "site of Deaikei". In this site, people who don't know each other meet. It is very dangerous. Because of this, we have to be careful.
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