No glitter on Twitter

I don't get the whole Twitter thing. I have no desire to be connected all day long and updating every little thing that I am doing. I can see some use for it, but it seems ridiculous in most cases. If you had a device that updated your location and that could be shared with a group of people, that might have some use, but not if I was an employee and my employer was tracking me. Maybe not if I'm a child and my parent wants it either. So maybe it's not clear to me what use it has.