Italian here. In many places they don't just turn on AC when not needed, but even do that the wrongest possible way: while leaving shop doors open w/ no air bar

Italian here. In many places they don't just turn on AC when not needed, but even do that the wrongest possible way: while leaving shop doors open w/ no air barriers. No idea of the reasoning behind that practice, but I often see shops doing that, especially coffees. Do they think customers won't in if they see transparent doors closed? As a result, their power bill will probably be huge, but having also fridges and blast chillers, electric stoves, espresso machines etc. working all day, that might go overlooked. I've heard somewhere in the EU there are harsh fines for shops using AC while keeping doors open, but sadly that's not the case here.