You can be a little ungrammatical if you come from the right part of the country.
I started out in New York, and New York has a way of countering a Southern accent, naturally; when I moved to Los Angeles for a job, and I just stayed, the dialect out here doesn't really counter, and my Southern started coming back.
There is a whole host of people that have got an accent like mine, whether they're from Merseyside or Wales or the North West.
I think dialects should be left alone. People should write in whatever dialect they feel they want to write. In the fullness of time, these dialects will sort themselves out.
I'm from Connecticut, and we don't have any dialects. Well, I don't think we have any dialects, and yeah, it's very complex. That Rhode Island/Massachusetts New England region is arguably the hardest dialect to nail.
For creating the Texan accent, I would listen to Sissy Spacek and watch her in 'Badlands.' I downloaded the audio of that whole film and listened to that.
I'm from the South, and there's a different understanding of how to chop. There's a syllable play. It's a delicate art. Your accent has a lot to do with it. If you're from a certain area, words don't roll of your tongue as slick.
I'm a New Yorker, so I speak really fast, naturally.