At least here in Finland having each room behind a separate, or sometimes multiple, 240v 16A breaker is fairly common and has been for quite a while.
E.g our living room has four in total - outlets on the opposite walls are two 16A circuits, the electric heaters on a third, and lights on a 10A one. The main breaker is 3x35A three-phase IIRC.
At least here in Finland having each room behind a separate, or sometimes multiple, 240v 16A breaker is fairly common and has been for quite a while.
E.g our living room has four in total - outlets on the opposite walls are two 16A circuits, the electric heaters on a third, and lights on a 10A one. The main breaker is 3x35A three-phase IIRC.