I'm disappointed at how widespread this seems to be.

My mother died earlier this year. When I asked my boss at our series b startup for leave her response was, "do you really need this much time, its the end of the quarter." I told her that I did actually want 2 weeks to grieve the loss of my mother and she never responded. When I returned to work, she had never told HR that my mother died. HR didn't understand why I was absent for 2 weeks. I decided to resign and not work with people who behave like that.