Do you maybe have a link to an article about this family since I would be interested in reading a fascinating story like that?
But to answer your question, because it's an interesting one. I really don't know, since I don't have that kind of money. But if I would have, I guess I would invest in crypto, yes. Just not 100% of assets and I definitely wouldn't go around selling any of my beloved physical possessions or family heritage for that matter. But most definitely not if I would have a family. It's a rash decision, really. You need to be brave to do something like that, especially if you have a family. Imagine losing everything and think about the children. Somehow you need to bring them up. If you have $500,000 in possession already, why risk it?
But usually, people with money get more money and those with cents, lose even those cents. Sadly, that is how the world works.