A lot of people aren't going to want to disclose any kind of personal info, including age, if it can be associated with their user name.    If you're really interested in the demographics of our group, you could just wait to see the results of the survey that was posted here.  If I'm not mistaken, it's supposed to close today so I'm guessing we'll see the results tomorrow or in the next few days. Not that it's any of your business, but I'm older than you and have a BMI of 20.