Asked my then six year old daughter.
My straight out answer:
Welllllllll, the boss of our world is the Prime Minister of Canada.
Silence. A sure sign of absorbing the information. Testing for flaws in her world perception; then asks: “How do you become the Prime Minister?”
Entering dicey territory, thankfully dodging the “her” versus “them” (when it was more certain 99.9% surely really a “him” in a tribe of boys, adjusting to her sphere of understanding)
I responded by saying: “Usually, a Prime Minister is a lawyer or an accountant.“