Due to the ambiguity of the actual text, and the varying responses of many Catholics who are acknowledged leaders and experts, some say that (In the U.S.) on non Lenten Fridays Catholics are <only encouraged> to practice some act of penance or good deed, not that (outside the U.S. currently, and before the USCCB decision) such practices are mandatory.
My own judgment is that, considering the universal norm calls for mandary penance on all Fridays, and that this has been the case historically for many centuries, and certainly is seen as being what the bishops would have **liked ** to have seen done voluntarily, that we U.S. Catholics should indeed be doing Friday penance on all Fridays.
But I guess there are some (and I’ll try to express this as charitably and nonjudgmentally as I can) who feel that for those who honestly and truly feel that there is no need for them to do such a practice, there is no ‘binding’ upon them. Or that, because of everything from poor catechesis to mental/emotional/sociological/ecomical issues, that some people simply cannot do a “Friday penance” and thus should not be ‘forced’. And of course there really are people who do exactly what those bishops wanted, and who freely ‘give’ to God their penances etc., and sometimes even ‘beyond’ Fridays.
Again, I would like to see greater educational effort made to help people clarify the difference between doing the ‘minimum’ possible in the spirit of, “what is the least that I to do in order to be comfortable with myself that I’m with God”, and doing “what God wants of me, even if it’s than I would have if left to myself.” Especially if we are expecting a more ‘voluntary’ faith from people, they really need to know much more about that Faith itself.
I am also stating here that this does not necessarily mean that I think that those who do not do a voluntary Friday penance outside of Lent are “doing the minimum possible”.