If we go back to the early CPP uptake—people who take their CPP in their early sixties—and split that figure into those who have some registered pension plan income and those who do not, those who do not are far more likely to go back to work and work a significant amount than those who also have pension incomes. It seems that there are at least some people who retire without that adequate income, then reassess their situation and end up back at work fairly soon afterwards.
On October 20th, 2009. See this statement in context.