Cameras come in all different shapes and sizes. I can get cameras that look like cellphones. I can even get keychain cameras for $4 off eBay and put them in my shoes. Set them to video and shoot hours of up skirt shots.

The law does nothing to stop people who want to take pictures without you knowing they're doing it. Anyone who wants to will. The law is pointless

No, it is not pointless.

The point of this law is to create the perception that the authorities are doing something about the perceived epidemic of upskirt photography.

The same authorities also erect signs next to escalators warning people that upskirt photography is a crime. They serve the same purpose: to make escalator-riding ladies feel that the authorities are watching out for them.

Don't knock it. It works.