If things are so bad that gold trading is banned, then I hope I can swap a few coins for a house, or a car, or something like that.
Being able to trade in that sort of climate would be difficult I agree. But if the UK government passes a law forcing the sale of gold holdings to them, (as what happened in the US during the great depression) then any UK resident with BV holdings would be stuck. This is unlikely to happen though, as fiat currencies aren't pegged to gold anymore.
FWIW I prefer GoldMoney to BV. The setup of GM looks to be more risk adverse.
EDIT: BV would be stuck too. They would have to relocate their business operations to a territory where trading is allowed and then take steps to ensure all UK residents are prevented from trading as well. :blink: