Do England ODI players born early or late debut at different ages?

No. Not really. Sept-Oct born (Q1) are slightly older. Q1 and Q4 (Jun-Aug) have more variation in ages. Q1 has both the youngest (19) and oldest (36) players. 4 of 5 players to debut over 30 were Q1.

(* For players to have debuted from 1/1/2000.)

The Average Age of an England ODI cricketer on debut is 24.6.

Ave Age By Birth Quarter: Q1 25.7, Q2 24.2, Q3 24.1, Q4 24.6

Standard Deviation of Age By Birth Quarter: Q1 4.19, Q2 2.49, Q3 2.72, Q4 3.25

Youngest Player: Eoin Morgan 19.9

Oldest Player: Paul Nixon 36.3

4 of 5 players to debut in their 30s are Q1: Paul Nixon, Mal Loye, Michael Lumb & Michael Carberry

Last player born June-August (Q4) to debut for England ODIs was Sam Billings 5 YEARS ago. Since then 15 players have debuted (Q1 4, Q2 6, Q3 5, Q4 0). * Update (Liam Livingstone (Q4) made his debut on 26/03/2021)