Board Thread:Lore Discussion/@comment-24098614-20150918233123/@comment-26987392-20150919052110

As said, you don't have to be dragonborn to shout. But for a normal mortal it takes imense ammount of effort to learn even the simplest shouts(unrelenting force). Ulfric Stormcloak studied with the Greybeards - who took a lifetime to master The Voice - but still he only knows a couple shouts.