Same in sports by the way: most "gifted" players are born at the start of the year: https://www.google.com/amp/s/fivethirtyeight.com/features/wh...
Conclusion: at young ages, you should be very careful what you call "gifted" when you place kids with almost 1 year difference in the same group.
Link with google removed.
(whenever you copy and paste it, you can just delete the "www.google.com/amp/s/" part and the URL will now point to the real website.)
Same in sports by the way: most "gifted" players are born at the start of the year: https://www.google.com/amp/s/fivethirtyeight.com/features/wh...
Conclusion: at young ages, you should be very careful what you call "gifted" when you place kids with almost 1 year difference in the same group.