To be honest I don't think gold (or any precious metal) tokenization is viable (at least not in the way we are doing it at this moment). I mean, if you want to have gold you need to keep it safe and the more gold you have the more money you will need to spend to keep it safe... Now, if you add to those costs the thing that you are a custodial then you also need to add audit costs to prove you have the gold you say you have and you tokenized.
At this moment, a tokenized gold can be freely traded in the blockchain (in Ethereum you have multiple of them) without paying fees to custodians so... How can you keep paying others costs?
That's why I don't think it's viable at this moment, not until we start paying fees to custodians who keep the gold safe and also audit them (because I won't buy a gold token that is not audited)
