In that regard, it's not a problem at all for someone to store $10,000 worth of Gold at home.
Doable? Yes. Safe? Not at all.
Corruption is widespread in Argentina. The police regularly take bribes from criminals, let them operate in safe zones that they don't police, or even work with criminal rings. The government is hardly any better. If someone discovers you are storing $10,000 worth of gold in your house, that becomes a big problem.
You can walk into a jewerly store and have it converted to fiat, while with Bitcoin you don't have that level of acceptance there. Gold jewelry is commonly accepted as a valuable good that can be exchanged to fiat at any time, which makes it even easier for people to liquidate pure Gold coins/bars.
Sure, but he was talking about trading large amounts without drawing attention himself. Trading a necklace or a ring is one thing. Walking in to a pawn shop with 10 ounces in pure gold is going to attract more attention than sending one bitcoin from your wallet to another.