Well schools starts at the same time in Hogwarts, so I don't see why it should be different.
Plus, muggle-borns that are on the boundries would not have to leave school at the end of Year 5 or have to skip school for a year and going to Hogwarts then.
So Hermione might be the oldest in the year, about 8-9 months older than Harry.
But she's been studying magic for the same length of time - so I don't see why it should be an advatage other than her being older by a bit.
Might as well face it
You're addicted to love
-
Robert Palmer - Addicted to Love
RIP Robert Palmer
Manchester United 3 - 0 Birmingham
