You could say the same thing for cars when they were new: why would people ever adapt to not "jaywalking"? They're used to just crossing the street when they feel like it, you think they would ever change?

It's simple: 1. habits change because people can foresee the consequences of their actions 2. regulation and laws

The benefit of cars outweighs the rights of pedestrians, just like the benefits of self-driving cars outweighs the rights of work crews to do whatever they feel like.