In its 2012 annual report, the Salvation Army of New Zealand states, among other things, that older people staying in the workforce are displacing many teenagers from jobs. According to "The Growing Divide," the number of 15- to 19-year-olds in paid work dropped by 42,600 in the last five years, while the numbers still working beyond 65 jumped by 40,200.
In addition to just raw numbers, the labor force participation rate of people aged over 65 rose from from 14.1% in December 2006, to a record 19.5% in December 2011. At the same time, the participation rate of workers aged 15 to 19 has dropped from 58% to just under 48%.
Sources: Salvation ArmyNews Release (February 2012); Otago Daily Times "More older people staying in workforce" (February 19, 2012)