Thanks, everyone .
Rossim, I agree that regional dialects should be celebrated - I enjoy (well, most of the time) the variations. I don't think the Awe/Oar clue fits in with that, the Times is a national paper and the pronunciation isn't! Like you, I think bad grammar is a different thing altogether - but there's a huge section now of the population who know very little about the subject, as it's largely been abandoned in many schools.
Jigjag, I go on and off the idea of using 'youse'. I definitely prefer it to 'you guys' - which my friends (all female) and I get in restaurants, bars etc.