“exchange boards are not uncommon”
but can i go in ace hardware, home depot, lowes, safeway, or a honda dealership and buy stuff at those places with cryptothingies?
can you walk into those stores and buy anything with shares of microsoft, facebook, twitter, or any publicly traded company?
hell, can you buy anything in those stores with an ounce of silver or gold?
no.
your view of finances is beyond simplistic