First of all I'd like to say that in every society frindship sometimes is like a kind of tool to get what we want or improve our social status, for example ,we need some people whom we can tell "friends" to get a specific job or use them to achieve an objetive. What I mean is that friendship, (not all the time of course) is nesesary when it is usefull and when it leads you to a pleasant result. But not all the time friends are just to please us, it is also about a special relation ship betwen two people who have never met before and that the only link that join them are their common likes and dislikes, a friend is also the one who teach you how to get trogh the problems, because a friend becomes an important person in your life, in adtion, a friennd makes of life something funny and less painous when you are alone and even the help of family can't change the sadness or happyness, is for these reasons it is said "what frinship is for?", in fact a friend is smeone to close to our lives that becomes almost a brother, the only person diferent to your family whom you can tell all your secrets without the fear of being judged and share whathever is posible.
On the other hand, not everithing is about how good is to get friends it is also about to learn how to chose them, 'cause when you have told to someone the things you never speak with nobody else, this situation could change life into a hell, we are never going to expect that a friend betrays us but give us a hand when it's oportune. It is one of the many mistakes we make when meet other people at the first time and what they pretend to be is not more than a phisical ilution which blinds us from the thrut. Nowadays frienship turns arround this kind of culture, due to real friends are only in our imagination or they are olmost imposible to find. In fact I asked many people if they had found a true friend in a life time and unfortunatelly they answered me that it happened only in their childood, this way I agree too, because it's only in our childood when we can express our feelings with inocense and we are at the same time the funniest, the most reliable and the best ones because it's just at this time when we are not corrupted by others and we can see beyond the superficial aspect. Because of this, I think we should wonder ourselves if we have ever met a true friend.