Mommies with older babies. Question. At what age did you introduce cows milk to your babies? My son is 2 now and i had…

Mommies with older babies. Question. At what age did you introduce cows milk to your babies? My son is 2 now and i had him on just cows milk by 9 months and off the bottle by 1 year with the ok from his ped. But my daughter is 7 months and her ped. said we should wait until 1 year to even introduce it. So im conflicted