There are people who like knowing things.
Not important things.
Not things that are pertinent to their lives.
Not even things that would enhance their general understanding of the world and all its complexities.
They need to know the mundane stuff. The 'where are you going' and 'what are you doing' and 'who you're doing what with' etc... the stuff that is of really no significance to anyone else.
My Dad is one of those people. Our answers of I'm going out - with friends-to hang out- will be back in a while were absolutely infuriating to him not so much out of parental concern I suspect, but because of the sheer lack of detailing.
There are other people in my life who also have this Need-to-Know issue; and because I do not have enough entertainment in my life, I like to mess with them.
It is absolutely amazing to watch someone get so worked up about a teeny little detail that they know probably won't amount to much, but they need to know about it anyway.
They just can't seem to help themselves.
Then again, neither can I.