People who aren’t paying rent after the pandemic started likely aren’t doing it for fun. Most likely they are underemployed, hence collections will stack up. “Living within your means” assumes it is even possible to find employment and a handful of life/medical/mental/family stability that not everyone has.

You seem to underestimate how much of modern life in the USA depends on credit. Electric, water, telephone, internet service require credit or suffer the costs and inconveniences of prepayment. Rental housing almost always requires credit checks in any desirable market.

You also seem to assume that collections can never be converted into a lean on your assets or garnishment of your wages. And that doesn’t even begin to crack the strange and painful tactics debt collectors use on your family, employment, friends, and other social pressures.