Millennials began saving for retirement in their 20s.
That's a decade before previous generations, who waited until their 30s.
But Business Insider reports that even with that head start, millennials still have less wealth than their parents did at their age.
Bank of America's latest Better Money Habits report reveals the Great Recession turned millennials into savers.
Unfortunately, millennials are also saddled with student-loan debt.
And skyrocketing living costs are outpacing wages.