I've read all the posts here and I can't seem to get away from the feeling that it's all a bit "overly complicated?" I just don't see the point of categorising

I've read all the posts here and I can't seem to get away from the feeling that it's all a bit "overly complicated?" I just don't see the point of categorising myself as a person who has, for example, a hierarchy for ranking social interactions or as a person who checks mail many times a day and doesn't go to the store with a mobile. Why is this important? Is it? I just can't see the importance. But maybe that's just me... When I was growing up I realised that I didn't know, or even care, for "how I wanted my eggs." It just didn't seem to matter in the grand scheme of things.