My wife had a similar mix-up (except they combined the year of her birth with the day and month of her older sister). For her to get it corrected sheRickThai Today, 10:31 PM
You realize that this thread is over 4 years old???
My guess is that life hasn't changed that much for the rural Thai farmers (except using mechanical buffaloes for plowing).
Too bad they can't start taking international flights at Don Muang (perhaps all the Asian countries can use DM as their international terminal?).