10ths make things a lot simpler.
Not when are using something everyday. It's interesting in Australia when it is very hot or someone is very tall etc. even the media will revert to imperial. When it is 45 C they will say ... that is 113 in the old money ..... same thing with someone who is very tall .... I get my supermarket orders online and a few weeks ago the delivery bloke would have been about 21 and he was real tall and I said that to him and asked how tall he was. Straight out he said 6 foot 8.
No 203 cm or 2.03 metres.