This is becoming less and less common now because in the end people who continuously make poor financial choices, its catching up with them way before they hit their retiring age.
In what way? Genuine question. We could go on lavish holidays, pay the minimum on our mortgage, get a new car every 2 years on finance, eat out all the time and get to 65 (probably 75 by the time I retire) and until we retired we would be able to keep our head above water just fine unless one of us suddenly lost our job.