Per the US government, which tracks what people in different deciles actually spend on various things in surprising detail, the median US household has ~$1,000 in cash left over every month after all ordinary expenditures.
People consistently overestimate the cost of living in large parts of the US because they only visit the very expensive parts and imagine everyone spends money like they do. I have a long-time friend, a single mother with no outside financial support, who was able to buy a condo in a decent school district in a major midwestern metro on ~$15/hr with prudent planning. It took her a long time and it isn't in a suburb where bougie tech people would want to live but she seems pretty pleased with herself. I will admit to being surprised when she told me but she'd actually figured it all out within her constraints and was able to successfully work toward that goal on that wage. The way most people talk about it, this should be literally impossible.