I haven't seen it enforced in Germany and despite what OP said, you can see people crossing on red light in Germany too but people tend to have a greater awareness of car traffic here. You know the car driver don't expect you to cross when he's got green and the pedestrian knows that they may die because the driver doesn't expect him to cross.

It's different in Poland for example. If you don't just go on a pedestrian crossing (no lights), no car will stop. Because of that it's more likely for people to cross on a red light because they know car drivers are trained to watch out for them. A really bad development. People die because of this.

A very helpful campaign in Germany were signs which told you to be a good example for children. It grew into the consciousness of the population and you very rarely see people cross on red when there are kids around. Also having green on demand buttons which give you FAST results helps too. They are very popular in Germany now.

I lived in Geneva and worked in Lausanne (not the same periods) for a few years, and never saw anyone get fined for jaywalking in either city, not even myself. :) I guess it depends where you walk…

It was on my daily bike commute into the city and was one road near the bridge (near the Vigie stop?) where it was just particularly tempting to jay walk.

Jaywalking tickets are very much a thing in Southern California, but you'll pretty much only get one if you're doing it in a blatantly unsafe manor.