I'm not sure that's true any more at the lower end of the socioeconomic scale. People I know are having a very difficult time covering just rent, electricity,

I'm not sure that's true any more at the lower end of the socioeconomic scale. People I know are having a very difficult time covering just rent, electricity, food, and transportation for a family of 4 on a dual full-time income. After cutting basically everything else except the cellphone bill because you basically can't get by in the modern world without a phone and an internet connection. (And that replaces the landline bill they would have had a few decades back.)