[dwiel]

As a parent of a 6 year old and 8 year old, I'm thankful for this cutoff. Many studies define child as <= 18 or < 20, and I'm not sure how relevant they are for our particular situation.

[taeric]

I'd prefer both. There is a meaningful difference in both compared to the rest of the world.

Similarly, nursing homes and any other assisted living makes sense as a category.