>>Actually you are an adult in australia at 18, so we dont have any in-between years as such.
>
>I'm not sure where 18 comes. FWIW, adulthood really has little to do with age, but if I typically consider 16 an adult. Though it can be affirmed or denied by the individual regardless of their age :-)

It was in relation to him saying there was a period between 19 and 21 (ie 20) when not a teen, but not an adult (due to legal age being 21)
In australia the legal age for voting etc is 18. I was just saying that the 'twilight year' as he called it doesnt exist in Aus.