All that's required to to exchange gold is one person that has gold and another person who wants gold and has something the first wants to trade for it.
Or: for the majority of people, holding hold, recognizing gold, and exchanging gold is not possible. You need experts for that, and they all take commissions. And sometimes scam you.
You don't need experts; you can learn how to identify real gold yourself, in far, far less time than is required to learn to understand a cryptocurrency.
