GATES: When I was growing up, my parents were almost involved in various volunteer things. My dad was head of Planned Parenthood. And it was very controversial to be involved with that. And so it's fascinating. At the dinner table my parents are very good at sharing the things that they were doing. And almost treating us like adults, talking about that.
My mom was on the United Way group that decides how to allocate the money and looks at all the different charities and makes the very hard decisions about where that pool of funds is going to go. So I always knew there was something about really educating people and giving them choices in terms of family size.
Did you know Bill Gates Sr. sat on the Board of Planned Parenthood
https://www.pbs.org/now/transcript/transcript_gates.html (2003)