THIS!!!! I'm so glad you mentioned the race/zip code thing.
My cost of living isn't just where I live. It's my student loans. It's paying off the high interest debt I went into while learning to code, attending a bootcamp in NYC, and looking for a job for 7 months. It's coming from a lower income family, helping my mom pay the rent, and being the go-to person for emergencies, given that I'm the highest earner in my family by far.
Someone else's cost of living might involve having kids, or a health problem/disability, or taking care of an elder.
Just pay people what they're worth!
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