Another one of these threads, exciting. I'm under 30 and very frequently get discriminated for looking young and dressing comfortable (sorry I don't want my suit absorbing all of the crap and smells on airplanes).

1. Security line - "this is for first class only"
2. Boarding - people give me the look when I try to pass them while they hoard the gate waiting for the elite call. I've even had the dirty look with the "sit down, it's not your turn yet".
3. GA's - before the monitors I used to ask about the UG list, they would say to me, "sorry, we don't give UG's for free"
4. When Y pax board - I get the dirty look number two from pax who think I'm too young as I sit in F
5. GE's are IMHO the worst. They are no longer SE's, but not quite PE's (PE wannabees), and feel like they are finally someone. I've had 3 GE's in the past year talk me down (I saw their bag tags) and tell me that they are a "gold elite" so I should sit down and wait my turn. One even said, "only first class is boarding and since I'm not in first you certainly are NOT." I didn't have the heart to tell him I was a PE as I quietly boarded for my F seat.

#2 by far is the worst, especially the biz gate lice in suits working their crackberries and bluetooths blocking access to the boarding lane. They are already mad that they didn't get an F seat, then give me another dirty look (see #4 above) when they see me in F.

See young and elite threads from NWA, or gate lice threads:
http://www.flyertalk.com/forum/north...ung-elite.html