This would be a terrible move & open up so many legal problems. If real money could be traded to gil then anything in the Gold Saucer would become gambling under the laws of most countries. As a result it would either be restricted to over 18/21/25 or banned altogether. How would the game check the age of the user? Would everyone be required to pay subscriptions with credit cards or provide certified copies of passports? What about selling crafted items - they'd be able to be purchased with cash therefore would fall under Consumer Regulations.

A can of worms.