I believe it is better not to use an analogy.
“priests who faithfully celebrate Mass according to the liturgical norms, and communities which conform to these norms, quietly but eloquently demonstrate their love for the Church”
Ecclesia De Eucharistia of Bl. Pope John Paul II (2003)
vatican.va/edocs/ENG0821/_INDEX.HTM
There is no doubt that the US norm is binding. CIC canon 838 §4: “Within the limits of his competence, it pertains to the diocesan bishop in the Church entrusted to him to issue liturgical norms which bind everyone.”
There is also no doubt that the faithful are not to be rigid in every liturgical matter (see
Sacrosanctum Concilium, no. 37).
“37. Even in the liturgy, the Church has no wish to impose a rigid uniformity in matters which do not implicate the faith or the good of the whole community; rather does she respect and foster the genius and talents of the various races and peoples. Anything in these peoples’ way of life which is not indissolubly bound up with superstition and error she studies with sympathy and, if possible, preserves intact. Sometimes in fact she admits such things into the liturgy itself, so long as they harmonize with its true and authentic spirit.”
vatican.va/archive/hist_councils/ii_vatican_council/documents/vat-ii_const_19631204_sacrosanctum-concilium_en.html
So the norm is binding, meaning certain things are required or prohibited, however other matters are descriptive in the norm. That which is required is a command, however if this does not implicate the faith or the good of the whole community, then it is not rigid. See
Sacrosanctum Concilium no. 37.
All are bound to promote the common good (canon 223, §1) so obedience in disciplinary matters is required, and CDWDS has competency in disciplinary matters.
Canon 212 §1: “The Christian faithful, conscious of their own responsibility, are bound by Christian obedience to follow what the sacred pastors, as representatives of Christ, declare as teachers of the faith, or determine as leaders of the Church.”
The faithful are bound to obedience to their
sacred pastors, which means bishops, (canon 212 derived from Lumen Gentium 37). The
sacred pastors are bound to assist them to receive the sacraments (SC 91, canon 843 §1) and have been given specific directions from CDWDS to pastorally explain the norm, specifically, not to impose* upon the kneelers or accuse** them of disobedience and that such kneeling is illicit. Therefore the faithful are not in violation of canon 212 by kneeling where standing is the norm. This also demonstrates that this is not a matter of rigidity discussed in SC 37.
- impose: to establish or apply by authority (Merriam Webster)
** accuse: to charge with a fault of offense (Merriam Webster)
Mons. Mario Marini, Undersecretary CDWDS (2003) Prot. n. 47 / 03 / L:
ourladyswarriors.org/liturgy/kneeling.htm