If no one depends on them, have at it. But anyone with underage children who take part in these things is incredibly selfish. I still remember when Alex Lowe died in a winter climb in Tibet leaving his widow with three sons, the oldest of whom was 10.I have a serious question for everyone who disapproves of endeavors like this.
When is pushing limits okay and when is it a pointless endeavor?
In full disclosure I am all for people who chose to push whatever limits they want as long as everyone involved accepts the risk.
They'll give you crap about needing to do these risky things to truly be alive. But **** that. In most sports that are perceived as risky like climbing or diving, there's plenty of opportunities to take on difficult - even incredibly difficult - challenges while still having a very low risk of death. If someone truly feels he or she can only find fulfillment by playing with the boundaries of life and death (Agnes Milowka?), then don't have kids.