Gold is tradable anywhere in the world.=====
That might be true, but at a price, and there'll be plenty of spread, the difference between the buy and sell price.
You think you can throw a couple of gold bars in your suitcase and take it to another country?
First, your suitcase will go through an X-ray, and then the customs dudes will want to have a chat with you about how much you can import, and the duties involved.