Erm...no it doesn't. Don't comment if you don't have the correct information. As I said, March born children are the eldest as the cut-off in Scotland is end of February to start school the August of the same year.
So, if your birth date is February 28th 2022, you start school in August 2026 - age 4 & 6 months.
If your birth date is March 1st 2022, you start school in August 2927- age 5 & 5 months.
However, if your child is born in January or February you can defer & have them start in 2027 at 5 & 6 or 7 months. This is very popular- most parents I know did this/ do this (I did with DS3 Feb born & my sister with DN Jan born).
Therefore, September born children are bang centre in terms of age.
To make it even more varied, since Covid parents can defer ANY child who is not 5 on the day school starts if they so wish, so a child born in October 2021 could go to school in August 2027 age 5& 10 months and so forth.
I felt deeply sorry for my English friend whose son is a late August birthday & he HAD to go to school a few days after turning 4. She had no recourse to defer or appeal either (no ASN). He's now 16, & perhaps it's changed.