There's risk in all manner of things. Some I would personally consider as high risk for relatively low personal reward--or I'm not physically capable of doing them anyway (which alas covers more things than used to be the case).

But people like challenges, experiences, etc. some of which are never going to be wholly risk free. I'm not going to pressure someone to get out of their comfort zone in a way that puts them in potential physical danger but I fully understand people who pressure themselves. I've certainly gotten into some dicey situations now and then. Nothing serious happened--I was generally prepared--but it wouldn't have taken a lot for things to go sideways.

Or maybe you get distracted and forget to look both ways before crossing the street.

Sitting in front of a computer will claim a lot of lives through inactivity but manny people still do it because it brings meaning / relaxation / connection to other people to their lives.

Its the same with mountaineering.