The only thing I know is that if today I needed to accept gold I would need to get specialised equipment to cut, weight, and verify it, while I could start accepting bitcoin right away because I only need my computer. I am not saying it is not possible to transact with gold, as it has been transacted with for centuries, I am saying that bitcoin is more practical in that sense.
Discussion
plus, bitcoin is digital.
Imagine dealing with phisical gold in a crisis situation. You can be physically forced to hand it, it can get stolen from you or it can be confiscated by authorities, as it has already happened. I am honestly calmer having and hiding bitcoin from others. Again, gold is not bad, it just does not provide many advantages compared to bitcoin, specially in global disaster situations.
Yea digtal is the problem in crisis situation. You assume the power will come back, you assume others you must deal with give a fuck about bitcoin, whereas only a fucking moron would not accept gold. But, you do you. Not my problem nor my concern