I thought about this recently too. I go through and sort and delete files every once in a while, but I'm sure I still have a stupid amount of worthless files on all the different google accounts, phones, computer hard drives, etc that I've owned through the years. It's weird because I'm sure if I had that much physical stuff that I never used or thought about I'd be considered a hoarder, but because it's digital and doesn't take up physical space we don't think about it in the same way