I have found that maturity comes for us from modeled behavior. When D8 landed in a 7th grade math class, he was a very immature 7 year old. Within two weeks of hangin' with the big kids, his behavior began to mirror theirs.

We haven't had any problems in months and the only time he got in trouble was for running out of the room without asking to go to the bathroom. When I asked him why he didn't ask, he said quite simply "there wasn't time!"

Point is, your DS probably will be a little immature at first, but he will adjust to fit in. Good Luck!

Shari
Mom to DS 10, DS 11, DS 13
Ability doesn't make us, Choices do!