Ah, sorry, my mistake.
nccbuscc.org/liturgy/current/GIRM.pdf
Well, I read it, but I don’t see where it mentions the spiritual or practical benefits of changing a Roman Catholic diocese over from COTT, kneeling, from a priest to CITH, standing, from a laywoman.
It does mention a phrase I’ve read before: “the royal priesthood of the faithful”. Might that be it? We’re all priests in some way, so we can now handle the host?
"The Conference of Bishops of the United States has determined that in this country Communion will be received standing and that a bow will be the act of reverence made by those receiving. These norms may require some adjustment on the part of those who have been used to other practices, however the significance of unity in posture and gesture as a symbol of our unity as members of the one body of Christ should be the governing factor in our own actions."
usccb.org/liturgy/girm/bul5.shtml
[My emphasis, above.] I really don’t see why they would determine that that should be the norm for the US. How can it be an improvement over kneeling?
One day, figuratively speaking, you’re kneeling at the altar rail as your forefathers have done, the next you’re standing up to receive Communion from Mrs. Flaherty.