Pirates are the most forgiving character in the history of pretending. A pirate can be brave or cowardly, grumpy or jolly, a captain or a cabin boy, and every version is correct. Forget your line? Say “arr.” Lost the plot? Pirates lose maps all the time. Fell off the ship? Pirates were always falling off ships. You cannot do it wrong.
And it is so much fun. You get to swagger. You get to call your friends scallywags to their faces. You get to stand at the front of a ship in the moonlight with the wind in your hair and announce that the sea calls to you, and fifty people will cheer.