> (which implies anybody between the age of 10 and 19 inclusive)
So ? That's what I wrote wasn't it ? I realize 19 is 'a teen' but it is at the end of the spectrum. Saying just 'teenage' makes it ambiguous and is suggestive of someone much younger than nineteen, you tend to guess that must be in the middle of the range, whereas in fact it was the last entry in the range.