the older ones are afraid of change, theyll come around sooner or later

Yeah, even though I'm already worried about what they're gonna do to discourage the children, I gotta give them some grace. They've probably been taught the equivalent of: "If you don't stay quiet or serve another demon, you'll die." So to them, Iruma-kun's lessons must sound like he's telling those kids to go cliff diving with napkins as parachutes! (ーー;