i think you are in north america ?, h.c.w.
in britain the norm was to have a morning assembly with hymn and prayer, the lord's prayer, and extra events, readings, play etc at christmas.
also religious studies/scripture was compulsory.
i remember a jewish lady asking me, in a rhetorical way when i was about 7, do you know what it is, passover.
i felt mildly offended and said everyone knew about the angel of the lord passed over the children of israel, who fled dry shod through the parting of the red sea, ...etc, blood of the slain lamb marking the doorposts, unleavened bread in a rush.
she was astonished, and said, but how do you know that ?