I probably can't list anything that hasn't already been listed. But as one person told me, they aren't thinking about what we like to wear but what they expect. When they see us, they are caught off guard. Millions of women are crossdressing every single day, ( heck they can cross dress to an interview and get a professional job ) but enough women do it, no one is really caught off guard. But primarly I believe it's fear of the unknown, combined with the preconception that it's some creepy sex thing.