I get my notebooks at the thrift, & write when I feel like it. I agree, it’s a good outlet, a good way to remember, & I can code any activities I don’t want others to pick up on later.
I have a few letters written by my mother before she died, & it’s a visceral experience to see her handwriting, completely different from a typed or printed page.
Writing by hand makes one more precise, less prolix, a different thought process.