I am 70 years old. I have written four how to booklets, created a new seminar, and rewritten a longer book that needed editing.
My new project - a fantasy novel.
Wendy's Two Cents:
Absolutely -- why not, indeed! I love it! My co-editor, Pete, formats a 24-page tabloid newspaper at age 80 (and has done it bi-monthly for almost fifteen years now). The brain needs to be used.. learning, crosswords, new challenges... go for it!