***I guess the Pope has to say things over and over, since he can’t clobber anyone with a 2x4.***
To a large extent, it is up to us, the faithful. Half of the bishops in the US may wind providing paving material to the floor of hell with their skulls, to invoke an old image.
Almost entirely, I'd say, given the extent to which we outnumber the clergy, and the variety of solid teaching materials available to us.