While this seems like a really cool idea, I have a feeling that this is the sort of feature that everyone will enable at first, and then one single bad event will cause them to disable it forever.

I'm sure everyone has told a "white lie" at some point (e.g. "Sorry, I can't really hang out tonight because I'm not feeling well" == "I want to go see a movie by myself"), and anything that might hinder your ability to do that is likely to be disabled permanently the first time it causes an issue (or even in anticipation of it causing an issue).