That's because it didn't originate on this side of the pond. You can also find it in the West Country dialect(s); think Hagrid, Samwise Gamgee or Robert Newton'

That's because it didn't originate on this side of the pond. You can also find it in the West Country dialect(s); think Hagrid, Samwise Gamgee or Robert Newton's prototypical movie pirate captains (Long John Silver and Blackbeard). Poke around England a little more, and you'll probably find it elsewhere as well. Standard English really is a much smaller and lesser-used dialect than most literate people think it is.