The idea is a video game (or an app) for children to invite their grandparents into fall prevention in a way that destigmatizes the concept and promotes interdependence.
The game teaches the children learn and apply various ways they can get their grandparents be cautious and healthy, as a way to show how they care for their grandparents; just like the grandparents do for them. It is an example of a returning cycle and interdependence.
The children clearly won't be thinking about the elders' age or their possible death, due to concerns; but they will be suggesting ways to keep them all healthy and happy, due to love. The children will inform and ask their grandparents to take good care of themselves, no matter what their age is. This way the stigma against being considered old and at risk when suggested with precautions might shift into the positive feeling of being loved and cared for. The elder adults are to look after themselves and be responsible about it, not because they are old, but because they are loved.
This request coming from their highly cherished grandchildren would have a much different effect than it coming through a grown up or a doctor. It has a better chance to get through without offending. Especially since the grandchildren are constantly asked to do things in certain ways and told 'this is for your own good' by the elders, is a great leverage for them to do the same in return. Because love and care works both ways, as a cycle, it is only normal that safety demands also do so.
What about elders who don't have grandchildren? One of the things the children will ask of their grandparents would be that them sharing this info with their own friends, say at least 3 of them. On the other hand, the children that don't have grandparents might be directed to do it with neighbors or other acquaintaces, through assistance of their parents.
Like an intergenerational game, the grandparent will report to the child upon completion of the tasks and receive points. The game guides the children through it all and while contributing to fall prevention, it strengthens the bond between them. It changes the surrounding of the concept and turns it into a matter of love and care.