Exactly. Indeed, sometimes we are talking about estate bequests.
The idea is if your grandparent went to College, and then so did your parent, and then so did you, and you hit it big, maybe you give College a big gift.
So decades before, they admitted you as a legacy not because your parent gave big. That would be a donor’s list case.
They admitted you as a legacy back then because they were hoping eventually you would give big.