I'm 27 but look 20 (not in a good way).
I'm starting to get really annoyed at how I'm treated by sales staff. Classic example this morning when I went to try on wedding dresses I was positively sneered at and directed to the sale rail. I was then refused to try on any of the dresses despite the shop being empty.
This is not a one off, I've been refused to test drive a car I wanted to buy before 