Do you think 90 is old enough to fall into the “very old” category rather than just "old"?

My grandmother who is a widow will be turning 90 this year.

My grandmother has 5 grandchildren and 4 great-grandchildren because my sister has a child and my cousins also have children.

Do you think 90 is old enough to fall into the “very old” category rather than just "old"?
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