This is COMMON.
Because:
1) the child is often OVER-tired after school....
2) and they need to deflate after their LONG day at "work."
3) My son, when over-tired, gets more "hyper." But it is BECAUSE he is overtired and trying to FORCE himself awake.
School, is a long day for a Kinder kid. Even for older kids.
They are TIRED and hungry after school.
They are all wound up... after being spot-on in school and having to follow direction all day and stay still.
Then they come home and unwind... OFTEN being like a super wound up, child. My kids too.
This is COMMON.
Your child is not unusual.
My kids are 6 and 9. They are like that too.
After school, I let them unwind and relax and deflate and I give them a good solid snack. Because in Kindergarten especially, lunch time is actually in the morning. And by the time they come home from being in school ALL day, they are hungry.
AND my kids are TIRED after school. I know that, they know that, I can tell by their behavior even if they seem too keyed up. I know my kids are actually tired/sleepy after school.
And yes, they DO like to be "attached" to Mommy when they come home. They are little and young. It is normal.
BUT, try to verbally say that it is "relax" time... after school.
My kids know that.
But also they have homework, everyday.
ALL day in school, a child is not just playing, they are following direction and studying and having to be quiet and still. Then they come home and they just unwind and get out all their pent up, energy.
They can't act like that at school.