I know a number of people who've intentionally decided to live pretty much like that. Mostly they don't do it anymore after a few years, but it's totally an available option if you really want it. Saying "society poses" an expensive standard of living is not much proof that you're being forced to do anything.
But iceboxes were certainly common, as were fans. I guess my point being: the people of the 1920s weren't savages, and while it's obvious that they didn't enjoy the same comforts we enjoy today there were still many conveniences that did exist.
The past is a strange place, with odd customs, but it's not totally alien or barbaric.
With an extra 3 days of leisure every week I'd think I could handle not driving 80 mph on the highway. There are pictures of these 20s and 30s cars at the top of dirt roads in the rocky mountains so what ever power they had still let them go places.
Do I really need all the car that the civic is?
And for an extra three days of leisure a week, you'd be giving up not just driving on the highway, but indeed a whole load of things.
Again - for most things, nobody is making you consume these additional goods and services above the 1930 average. But, as we can see, they're quite popular and people apparently prefer to work more and consume more rather than work less and consume less.
Yes, a high infant mortality rate skews the figures. Still, I'd be willing to bet that the average 40 year old in 1929 had a life expectancy at least 10 years less than the average 40 year old in 2017.
Edit: Table 21 in this report is informative: https://www.cdc.gov/nchs/data/nvsr/nvsr64/nvsr64_11.pdf Expected years remaining for a 40 year old in 1929-31 was 29.67. In 2011 it was 40.58.