Maybe learn to read comments. Less than a third of the population had running water at home in countries like France before WW2. In 1960 a quarter had a fridge. But sure, commoners had access to the kind of place described in the article in 1926. Get a grip.
For one, 1926 we didn't have just "commoners" and "aristocrats." Two, people would save for special occasions at places like fancy restaurants, even if not to the extent of today, and even if more constrained to larger cities.