I've been writing and sketching in a daily journal since I was eight years old. I also read two or three books a month, plus various journals and magazines. My work involved a lot of research and reading as well.
After I retired, my kids looked at all the boxes full of journals, pages and stuff, and asked if I planned on leaving them to sort out those boxes when I died. When I looked at those boxes in the moving truck, I saw what they saw. Once I unpacked, I began sorting out those boxes and ended up reading my own journal for the very first time.
Dr. Burg, I know you are talking about people publishing their writing. I just wanted to say that keeping a journal opens doors to entirely different worlds.
As Robert Frost once wrote...
"I shall be telling this with a sigh
Somewhere ages and ages hence:
Two roads diverged in a wood, and I—
I took the one less traveled by,
And that has made all the difference."