Never heard of upskirting before. Sounds like panic during a fire.
Isn't it strange: you are perfectly able to walk about, sit down, bend over and tie up your laces wearing whatever you care to wear, regardless of what you may expose, but should that exposure be snapped - that's illegal!
Can someone please explain why it's okay to show, but not to have what you show recorded? (I am not talking about actively following somebody down a street and holding a camera at her ankles! That would obviously be wrong because 'she' never did intend anyone should see from that angle.) But tell me that a woman doesn't know what she shows when she sits down on a train or bus seat, or at a restaurant table. From the age of six I'm sure she knows, and if not, Mama did a damned poor job!