I suppose I'm in a similar boat to others here. The older I get, the more responsibilities I have, and the more reality hits home that if something happens, it wouldn't just affect my life, but my families' too. I used to be into old VWs, but now I find myself even wondering whether its foolish owning any car without airbags and where the doors are made from 2 pieces of sheet metal and whether the cost of buying a newer car is just the price you pay for the chance you might survive a crash).
I don't ride nearly as much as I used to (probably something to do with working a physical job and having kids) but I have found my enjoyment in riding shifting to being content exploring dirt roads and firetrails, as opposed to blasting through trees and sending it.
The lifestyle I've chosen to live means I need to not be injured to provide for my family. I need to cut firewood to heat my home, be able to tend my veggie garden, and fish and hunt, and it also means I have much less time for hobbies that aren't related to directly providing for my family. I know there is risk in everything, and its not a conscious choice I've made not to ride jumps tracks or DH anymore, but there has definitely been a shift in my interests and consideration for my role as a fully functioning human in others' lives.