now that you mentioned, ya...
we practically grew up with the 2nd gen of coins...
but not many countries actually change their coins unless there
is a real need...(eg, Indonesia phased out 5, 25, 50 Rupiah coins
as it is practically worthless).
Countries where coins has British Monarch on it... hasn't
changed for say... 100+ years?
except they do come out with commemorative editions once in a
while.