More than a quarter of children aged 16 will see their 100th birthdays. Find out how likely you are to get there. The Department for Work and Pensions have released a report detailing life expectancy in 2011 and comparing the generations at 20, 50 and 80 years old. The data sees 20-year-olds three times more likely to reach 100 than their grandparents, and twice as likely as their parents. Check out this 2011 UK report Differences in life expectancy between those aged 20, 50 and 80.