Who are you to say what he should or shouldn't do? He essentially died from a freak accident that couldn't be predicted ahead of time.
Telling him that he shouldn't do something because he's married with children is like someone telling you you shouldn't pursue a dream (whether that be climbing a mountain or trying an innovative startup with a high chance of failure) just because you happen to be married.
You don't know his situation. I don't know his situation.
Can't we just stop this judging and simply feel bad about an unfortunate death?