I think it really depends on the design of the co-housing model. If there is a group of people who want to build something with larger units to have room to bring in family members to do caregiving, that's totally an option. They do sometimes have caregiving suites on site where family members can stay to support people.
I think also that this is a question that's really important to bring to indigenous communities. I think the folks in indigenous communities whom I know and work with would say that this is a model that they would want to keep in their community. It would reflect what they're already doing, but it would provide the structure to do that.