Sorry, Whirledtraveler, but I disagree to the point of considering this thread invalid! Everytime I have watched a screener work, encountered one in the 'real world' or spoken with one, he or she has been young. VERY young. MADDENINGLY young! So I beg to differ with your idea that they are all seeming to be older, and...
...wait a minute! You ARE referring to MENTAL, as opposed to CHRONOLOGICAL age here, right???