> Give me one reason why they would not have eaten it during the time when
our
> evolutionary adaptation took place.

the time period when the baby herbivorous is on pure milk is very short as
they start to eat grass very early ( so bambi  cheese might be more  of the
kind "boursin "( french cheese with herbs and garlic ).
also young ones are not fat and might have not interested too much the
hunter ( and the scavenger will not expect the carnivorous to leave much of
a young ).
I never heard of hunter gatherers seeking out cheese that way .
jean-claude