I agree. When my mother died I got access to her emails, diaries etc. I read some and as you would expect there are a whole range of emotions and opinions in there, many of which I did not care to engage with. So I asked my wife to read some and she said said she thought it was worth keeping so we do. I will not read it, but perhaps someone else will get some value from it someday. It's no effort to keep (no boxes or terabytes of data).