Chef Ludwig working a shift at Nobu's is a bit problematic. I am pretty sure he has not seen a gas range, and would have questions about such a convenient cooktop. Remember when we first saw Eva? She hoped to steal a faucet in order to have a source of clean water.
It is amazing to think on how connected our homes and workplaces are to the vital infrastructure of our cities. In a city of an earlier era, water, light, heat, and fuel were discontinuous; each being hauled in as barrels, bundles of candles, heaps of coal, etc.