I believe the OP was being ironic… but I am prone to being mistaken.
As many have eluded to above it is all riding a bike.
There is a trend at the moment toward using existing trail centre trails for enduro races. I understand how that begs the question of why pay to ride where you can go for nowt!
I have done some events this year; local off the radar stuff, day/night, national level enduro, EWS and some xc and mini DH.
The overriding thing I have taken from all of them is the fun i’ve had.
It is not the terrain or even the places I have been, it is the atmosphere, the camaraderie and the making of new friends…. like minded people having fun.
Do I like racing… not really, do I like going to races, hell yeah.
I am mid table fodder btw.