But as we’re stuck with the word ‘teenager’, what do we do? We could use it in a non-judgemental way just to mean those aged 13-19. Or, better still, we could ditch it altogether and take people for what they are, not how they’re labeled.Case Study: I left school at 18 and worked as a teacher. I dressed like a teacher, behaved like a teacher and, as far as I can remember, even thought like a teacher. and how to deal with a lying teenager