I was that shameless annoyance once too. It doesn't mean shame is dead.
I noticed olders are more ignorant too:
* Standing prolonged in the way during smalltalk? Even 60y+ seems to have lost the art of stepping aside as much as possible.
* Stopping a crosswalks, esp. when children are waiting? 50y+ seem more prone to just driving ...
I was that shameless annoyance once too. It doesn't mean shame is dead.