For what it’s worth, NFP requires cooperation and equal sharing of responsibility.
The abstinence part is indeed shared. Couples using NFP should be agreed from the get-go that they will abstain during the fertile time. If they’re not agreed,
then you’ve got problems.
My parish has printed EofC A 4 sheets folded into 3 beside the confessional. Very popular because I’ve often noticed they’ve run out - again!
I would be happy to see people take these home with them. It would be a small matter to buy or create enough of them to replenish the supply. It is kind of like Gideon Bibles in hotels — if you need it badly enough to want to take it with you, please do, we’ve got plenty. (But I would ask the desk clerk first, just as a courtesy.)
I believe they are not supposed to ask if you committed some yet unnamed sin.
I do not agree that they should never ask about sins, if there are certain sins common to those who share the penitent’s state of life, especially if the larger society propagandizes against the Church’s teachings on these sins. The priest might keep it positive and upbeat — when hearing the confession of a teenage boy, for instance, if the boy didn’t bring it up, I think the priest would be justified in asking something like
“you do realize that a young man needs to live a clean and wholesome life, you do stay away from smoking, drinking, pornography, things like that, right?”. Of course, in today’s environment, that priest could very well be labeled a gay pedophile for bringing up something like this. Sad but true.
The laminated cards would probably be a better idea. Perhaps the priest could hand the card to the penitent and suggest they take a look and make sure they’ve covered everything.