Not ML parent here - there's a few kids on the very good ML 2025 capital team who are correctly aged 6th graders - they do have some big defensemen though. The really bad 2025/26 DVM team has a developmental 2024 player.
For a class based league or tournament, correctly aged means any kid in the 6th grade born after 8/30/2005. This means he will have 4 years of egibility during high school until graduation. The USL and a good amount of clubs in the U.S. differ on this and the 2 sets of rules are wildly different from age to contact and more.
