Maybe but we went metric (money-wise) in the UK in 1971 and I still think in pounds, shillings and pence - and measure in feet and inches! Litres? Kilos? Argh! Just put petrol (gas) in my car and have no idea how much went in (still think in pints and gallons). Ton - Tonne. Ow, my head hurts.
Give us old 'uns a chance.
A meter to me is "three feet and a bit"

Still, it is confusing when the day and the month are 12 or below 6.12.08.
6th December or 12th of June? No problem with 6.23.08. Just those Americans doing it backwards!

I rather like 6 Jun or Jun 6. I can cope with that!