The US instructed either "put distance between yourself and other people", or six feet (182.88cm), the World Health Organization and Singapore chose one-metre and, underpinned by 1930's research, New Zealand went for two metres along with the UK who after finally falling for the metric system soon realised that it was easily explained with, "Och, just stay six feet apart - the height of your bairn, or wee'un, or littlin, or lad or lass..." affectionately used well after such descriptors should have lost relevance.

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