It is going to turn around rather quickly when the dangers
become ever more apparent. Only a minority of fools engage in extreme
sports.

Well, as it's been growing for over 20 years and, after all that time, it's still being taken up by more young people and first time participants than hiking your proposition looks, shall we say, .... unlikely :-).

I do not see that 'trend' developing at all. I see it going in
just the opposite direction for many and various reasons. You need to look up
the word "fad".

Yes, Ed, a 'fad' that's lasted for decades ... I think you'll find that is called a trend.