Me either, but any sane reasonable person would say it was a mistake.
Better than dying in a bed, hooked up with tubes and hoses in every orifice and being tortured a few weeks by the “health care providers”, maybe?
He probably went solo because all his hiking buddies are all dead, or in a nursing home! That’s how I got into it, difficult to reliably find people crazy enough to do stuff like that, or at least find the time, schedule conflicts.