I have no idea whether there are any new rubrics about genuflecting, but to put my tuppence worth in, when I lived in England, which would have been 44 years of my life, from about the mid to late seventies there started to show the demise of genuflecting. 80’s and 90’s things getting worse and by say 2005, well i have to say 90 - 95% haven’t got a clue. OK me mums got bad knees, so she does a half genuflect hanging onto the pew. I agree with former replies where I doubt very much if this kind of percentage has knee problems. And sadly this is in churches I been to up and down the country, it’s not a localised thing.
Come on, we all know it’s because they’ve forgotten that Christ is truly present in tabernacle if the little red light’s on. Oh, hang on, where’s the tabernacle?
Lucky for me, after having moved to France 6 years ago I now sing in a beautiful choir, the Gregorian chant each Sunday, where the tabernacle is above the altar, (dare I say it, in its proper place, oops), and everyone bar none genuflect!
Answer to problem = put the tabernacle back and teach everyone about the True Presence.