This question touches my heart both personally and professionally, and am excited for the work you are doing! If you haven't already done so, I would encourage you to look into "Aging in Place" literature and the power of blended demographics - seniors with young adults down through to young children. Denmark is making amazing advances in this direction, with layering learning across age-ranges. Within something like co-housing environments for example, when combined with augmented reality / mixed reality, could yield some wonderful possibilities. I notice this question was posted some time ago... Would love to hear more about your project has evolved... Please feel free to be in touch! In Service, Trae