I journal basically daily. Once a year I do a "year compass" and part of the process is skimming all my journals. It's extremely time consuming but very valuable.

Other than that I rarely look at old journals unless I need to find something i forgot. I think I'm just too busy and focused on the now. That's probably ok.

I've been visiting my friend who was recently hospitalized unexpectedly and he says he's really bored all day. I feel like in his shoes that would be a good time to read and reflect on my life a bit, especially if I was nearing the end. I don't know, it doesn't really matter, the process of writing alone is valuable enough.

(Plus I journal in org roam and org roamify all my entries. Maybe one day that'll be useful to me. It already has once or twice when I'm looking up prior software evaluations)