How can a couple living on $19 an hour struggle without rent or kids?

I calculated my equivalent net hourly wage combining my Social Security disabilty + my part time job. I make equivalent to $19.04 an hour, equivalent to someone working a 40 hour work week making that wage (which I only work 24 hours a week).

So if me and my wife are living on my equivalent $19.04 an hour (net) without any kids, a mortgage, or even a rent payment, does this speak volumes to how shitty the US economy is?

How can a couple living on $19 an hour struggle without rent or kids?
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