In the bay area one can easily live on $100k a year. So long as they're willing to have a housemate (share a 2 bd room with someone else). Clearly not possible on a single income family, but either 1) Single person sharing a 2bd room place with someone els or 2) a dual income home renting a 2bd room place for their approximate 1 child.

I see too many bay area people thinking that ubers and expensive meals out are the "bare minimum".