I wonder if that's because there are lots of younger folks who have to maintain old COBOL projects, and are looking for help on SO.

That feeling when you discover you're older than the COBOL tag.

Note that this is not just a statistic of people using COBOL, it is a statistic of people having questions about COBOL and asking them on SO.

It only counts users who have linked their profiles to social networking sites, and have their age listed.