I think friends are most definitely to make someone happy. I'm sure that quantity does not mean quality, so it really doesn't matter whether you have 10 friends or just 2, but very good ones. It is important that you have someone to stand by you and to support you when it much needed. In fact, sometimes it is nessecary to get something form your chest and share your problems with someone other than your family. Besides, they say friends are family, the family you can actually choose. The more you make friends and surround yourself with nice people, the better your life becomes. What is more, such people can teach you valuable lessons about life and friendship.