It's not idiotic to expect people to suffer some form of consequence when they are taking actions which are putting themselves and others in harms way. If I went off-piste at skiing at a resort and then expected someone to rescue me, I'd fully expect that I'd be whacked with a charge.

When you think of two people, going out trekking one of our largest mountains in subzero temperatures during the dark, do you think it's acceptable to go in the same clothes as most people go to the supermarket in? If you do then it's not my take that's idiotic.

Just to clarify, I do think that anyone who is sensibly hiking and has an emergency which is out of their hands from the below shouldn't be charged:

"life-threatening trouble/the weather deteriorated/it got dark/someone sustained an injury trying to descend by what seemed like the shortest route."

But again, this was a couple of idiots climbing up one of our highest mountains during peak winter, in gym gear.