They are junior eligible but they are seniors. Last Olympics was 25, 25, 21, 20, 20, 25 avg. 22.6. So far this year 23, 26, 22, 23 with 5 of the 8 finalist 23 or younger. The older champs jumped onto the scene when they were 20-21.
No doubt there's a lot of young talent at the senior level today. That has not been the norm.