Try to think of an activity that genuinely works for a seven year old, a forty year old and an eighty year old at the same time.
Not one where the kids are tolerated. Not one where the grandparents are seated to one side and asked how they are going. One where all three are actually doing the same thing, at the same table, with something at stake for each of them.
The list is short. A jigsaw is on it. We say that from years of experience with a family that includes three generations.
It works because the task splits naturally. The seven year old sorts by colour, which is the job they are best at in the room and they know it. The adult builds the border and the hard middle. The grandparent, who has probably done a few hundred of these, quietly finds the piece everyone else has been looking at for ten minutes.
Everyone contributes. Nobody is being managed. That balance is rare in family activities and it is worth engineering on purpose.
Some things that make it go well.
Choose the image for the youngest keen participant, not the youngest person present. If a nine year old wants in, choose something with animals, or vehicles, or a scene busy enough that they always have somewhere to work. A 500 or 1000 piece with plenty going on is right.
Give the little kids a real job with a name. Chief sorter of the blue pieces. Head of edges. Titles work absurdly well and stop the drifting off.
Have two lamps and enough table. Six hands need space, and older eyes need light. This solves most of the friction before it starts.
Do not correct people quickly. Let the wrong piece sit there for a minute. Somebody will find the right one. The urge to run the table is the fastest way to make it stop being fun.
Have a puzzle that lives out. The magic happens when it is available. Someone walks past, puts three pieces in, keeps going. Over a week the whole family has worked on it, mostly alone, and it still feels like a shared thing.
There is a deeper reason to do this with the older people in your family, and I will put it plainly.
Australian data links loneliness to poorer physical and mental health, greater psychological distress and premature death, and shows social isolation running at more than double pre-pandemic levels (Australian Institute of Health and Welfare). Long term engagement in cognitively stimulating activity is associated with lower dementia risk across a fifteen year follow up of more than twelve thousand adults over fifty (Journal of Alzheimer's Disease).
Company, and something to do with your mind. A jigsaw on a table quietly provides both, without anyone having to call it an intervention.
And the visits get easier. If you have ever sat in a lounge room with a parent or a grandparent, both of you searching for the next thing to say, you already know why a puzzle in the middle of the table helps. It gives the conversation somewhere to rest.
Take a box next time.
Find one for the family table.