I think that definition is susceptible to defining the "necessities for living" in ways that underestimate poverty. How do you define what's the standard of living? As of 2021 I'd imagine that several necessities for interacting with society such as internet access and potentially even mobile access would not be universally viewed as required to be above the poverty line. Similarly while home ownership is probably not required to be above poverty line, is stable access to housing required? What about having sufficient savings to survive/social support to survive the loss of a paycheck without missing rent?