But it is the same every where. I travel daily on a train to London, and when not packed loads of people put their feet on the seats, usually with their dog poo encrusted shoes on. It's endemic and not confined to a particular age group.

What really annoys me is people walking along while drinking coffee. If you want/need a cuppa then sit down and drink it.

And then there's people so obsessed by their mobile they bump into you as they charge headlong along the pavement.

(By the way I'm 60 so qualify as a grumpy old man I'd guess.)