Ticket control in Berlin seems to have gotten extremely centralized. 5y ago it was pretty random where they might walk a few people through scanning on the trai

Ticket control in Berlin seems to have gotten extremely centralized. 5y ago it was pretty random where they might walk a few people through scanning on the train, today it's almost always checks on the platform at major hubs / tourist centers. I don't know if this a real change of policy or a side result of the BVG changing their contractors.