Your friend did a great job

I just had to ask. Are Birkenstocks a lesbian thing? I think everyone where I'm from (Boulder, CO) owns a pair.

"When I grow up, I wanna work at Alfalfa's
Where the cheese is dairy free
A Birkenstocks, Spandex, necktie, patchouli grocery store
I'll have a job, picking through the produce - no pesticides for me!
I'll be a working moderate income socially conscious Boulder Hippie."
-Alfalfa's by Leftover Salmon