You should try living in France. Everybody wishes everybody else a 'good day', a 'good evening', and a 'good night'. Everybody greets eachother with a 'how are you ?' and a handshake or a kiss. To walk down the street where I live, is an endless series of meetings and greetings and if you happen to see the same person twice during the day, you have to say 'rebonjour' (good day again). It's all very nice and civil, but it's a bit disingenuous.
I think 'ta' is a dreadful expression and the English habit for apologizing is just because we are afraid to offend. "Do you have any idea what it's like to be British ?', asked John Cleese in 'A Fish Called Wanda'.
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