Would btc be liquid ? How would you even send and receive even if you do own the private keys to your coin?

EDIT: I am aware virtually all other aspects of our lives would be fucked properly more than likely before btc even comes to our mind if this were to happen (unless you were disproportionately invested i.e. majority of your portfolio is crypto). Still It's interesting to consider whether bitcoin really is comparable to gold in this sense - if the world really goes to shit btc aint helping noone. COVID showed us how fragile civilisation is it wouldn't take much...