Yes I am fully aware of that but that does not alter the fact that in it's standard form IE bullion it can be classed as illegal at any time
Most people who store for value, for a long term view would have bullion as coins fore instance are more expensive for the same weight as bullion and if we have a breakdown of the fiat system coins would not hold their scarcity, collector value most would be valued as base gold
As far as the general public is concerned PMs are the only form of currency that they would trust in a bad time