Well put arguments for privacy

• Your employer doesn't need to know things about whether, when, and where you went to church.
• Your co-workers don't need to know how late you work or where you shop.
• Your sister's ex-boyfriend doesn't need know how often she spends the night at her new boyfriend's apartment.
• Your corporate competitors don't need to know who your salespeople are talking to.

From: On Locational Privacy, And How to Avoid Losing It Forever, Electronic Frontier Foundation (eff.org)