No, I do not. I think high school students should bring their smartphones. I have a few reasons. First, it is convenience for them to use their phones when they need sending messages for their parents. When their children come home late, they can chat on each smartphones. Second, by using smartphone, it will be able to make students' education more easily. For example, they can use their smartphone when they want to know mean of English words in classes. For these reasons, I hope those school will be change the school regulation.