Students must have a smart phone

In my opinion, have a smart phone it's a very big responsability, and only the most responsable people can have one (because of the money)

Have an smart phone, for me is to have a small computer. But there are advantages and disadvantages. The principal advantadge is that you can surf the internet as many times as you wish (of course, paying), and you can chat with your friends by messenger, facebook, twitter...

But there are disadvantages as well. The first one is that you waste your view, becaus the screen is smaller than the computer one. Another disadvantage is the money. If you spend many hours chatting with your friens, you have to pay many euros as well. And there are so many disadvantages, but I only have put the most popular ones (the same to the advantages)

Well, so there are many topics in that theme, but I only have writen most popular ones, but I think that other people have put other ones.