Actually, one advantage of physical gold, (and other valuables such as diamonds), is that they can be easily ferried around if one has to flee in an emergency. All throughout history, and even in the twentieth century, there were innumerable instances when this was required for survival. Of course, with Cryptocurrency, this process should become even more simple. Only, we haven't had that kind of distress affecting the holders of Cryptocurrency yet, (fingers crossed), in this century; so there's no way to be sure.
50 kilos Gold is some $2.5 million. How do you carry and move with 50 kgs ??
Obviously, one person can't! But when I wrote this, I remembered a panel discussion on CNBC I'd heard some time back, in which one of the panelists mentioned that when his grandmother was a five year old girl, their family needed to urgently escape a war zone, leaving all their possessions behind. They had gold bars fashioned into chain links, which they wrapped around their bodies and underneath their clothes. In their new place of refuge, they sold that gold for seed capital to start a new business.
Today, one can simply convert into Cryptocurrency and retrieve anyplace in the world. But, seriously, how many of those Syrian refugees used Bitcoin?! Most were just clothes on their backs, and maybe a few valuables that may well have been robbed from them on their escape journey.