It’s easy to criticize the parents for letting their “child” do something so dangerous.
A 13-Year-Old Kid Has Summited Everest
But this kid is no rookie. He’s already completed 6 of the 7 summits. In December he’s scheduled to attempt Vinson Massif in Antarctica.
There’s some age that’s “too young” for high altitude mountaineering. But I’m not sure what age that would be. It depends on the child, I’m thinking.
besthike.com 
One question is should a child of that age be allowed to judge the risks involved. The legal answer is that he can’t, so it is his parents responsibility and they have been placed in a difficult position. I expect this will continue until someone is killed at a young age.