Friends...What are they for?

I truly believe friends serve very little purpose in my life. I have many acquaintances, but no real friends that I talk to every day and share personal stuff with. Yes, this can get lonely at times, but I find that friends can manipulate your motives and beliefs and turn you into something that your not. It is good to have acquaintances so you can build upon your social skills, but these relationships should stay very shallow.