I know that... but there are countless 20-something year old women that don't. Now I have a pic to put on my iPhone to seal it. "Blimp folder" is a standard story that men in my profession tell when asked "What do you do?" At a bar. Ask @HackerF15E about his career as a professional bowler.
The funny end to the shenanigans is that I got a chance to fly the Good Year at Long Beach. I told their CP about the "I'm a blimp folder!" game... His response was "So you guys are the reason a disproportionate number of women ask if we fold the envelope!"