As many if not most of you already know,

[No Vested Interest]

3. If the truth be known, most of us with adult kids,

especially those unmarried and/or without kids of their own, know that Mass attendance is infrequent among them.

Of my four, only the Notre Dame grad is a regular attendee. The others range from one who is completely non-religious, one who is lazy about going but considers herself a Catholic, and one who will join us when we're on vacation together, but no interest otherwise.
All attended Catholic grade and high school; only the first one I mentioned attended a Catholic college.

There's no point at this stage in trying to educate them further in this regard. They're really middle-aged now and should know their own minds as much as they ever will.