We were neighbors for ~5 years and eventually decided it was working well enough that in 2020 (just before the start of the pandemic, as it turned out) we bough

We were neighbors for ~5 years and eventually decided it was working well enough that in 2020 (just before the start of the pandemic, as it turned out) we bought a house with an "in-law" apartment and now my parents live under the same roof. The two spaces are separate (only the laundry room and garage are shared), so we're not right on top of each other, and it's working quite well so far. My kids are still young (10, 6, and 6), and my parents are in their early 60's. Barring any unforeseen circumstances, my kids will spend the majority of their childhood with nearly daily time spent with their grandparents. Similarly, a lot of end of life questions/complexities are already answered. My parents are in a home where they can age in place and we can provide care for them when their needs increase over the coming decades. I had some reservations, if I'm being honest (it was my wife and my mom who were the primary drivers of the plan), but having spent ~2.5 years in this arrangement so far, I really wouldn't trade it for anything.