How Do You Define Your Privacy?

I find the technology to be useful, especially for sharing photos etc. with the grandparents. The user's behavior and expectations are what bother me. Just because someone becomes accustomed to sharing every instance of their life online or via phone they assume that they should have access to yours as well. And if they don't they make an assumption that you are trying to be sneaky or deceitful because "sharing" has become the cultural norm.