I've admired Michael Kenna for over 30 years. I saw him speak at my Alma Mater CSU Sacramento. Here's an interview from a Japanse website.
Here's an excerpt.
"Q. Are You Afraid That You Might not be ABLE to Get Films and Chemicals in Few years?
When That Happens, I Will Deal with it. I CONSIDER my health to be FAR more Important than the Changing Technology of Photography. It's just the way it is. And if I Have to Learn digital then Surely I Can and Will. "
He was called himself as an "Old dog" when it comes to cameras and film.