Live or Die, Together

We were discussing statistics when my American colleague told me about a story of his friend's family. Whenever they travel by air, they break the family up and take different planes. My American colleague thought that this made no statistical sense, that is, the chances of a plane to crash isn't going to change.

However, the chances for the whole family to perish from air crashes do become significantly smaller, considering that it takes all the planes the family members take to crash for the whole family to decease, and I guess this is what makes sense for that family. Yet I have another idea: it would be a tragedy for anyone of the family to survive the accidental death of other intimate members, and it is far more comfortable (at least for me) to go along with my family, alive or dead, which means, taking the same plane would be the 'rational' choice for me, as we can they live and die together.

My colleague laughed hard. He'd never looked at the problem from this angel before. But he admitted that my opinion made sense to him.

And so much as I'd like to generalize for the East and the West, this opinion might be just mine and mine alone. What do you think? Will you device a strategy to outlive your family, or would you rather be with them, for eternity?