It is my understanding that only about 6000 ancient human skeletons have been found. https://humanorigins.si.edu/evidence/human-fossils https://humanorigins.si.

It is my understanding that only about 6000 ancient human skeletons have been found. https://humanorigins.si.edu/evidence/human-fossils https://humanorigins.si.edu/evidence/human-fossils Many of these are incomplete. So the samples of children with bad teeth could easily not exist or be very limited. The same could be said for children with good teeth.