You get health care as part of your compensation, cars are very cheap, and public transit is decent enough in SF and NYC. If you work somewhere like apple, you get 2 weeks + 3 weeks of 'mandatory' vacation (thanksgiving & 2 weeks of christmas), and other larger tech companies offer generous parental leave.

On top of that, you get paid double or triple. If your sick, you just say, 'i'm sick' and either WFH if it's minor and you don't want to infect the office. Or not work at all if it's major enough