You have to make the decision that you feel is right.
With Cristopher and Colby we held them back in PreK. They weren't ready for K. About the middle of last year the teacher and I talked about possibly holding Cris back in K. I was against it. He would have been one of the youngers ones in his class now he is the oldest. I wasn't willing to hold him back for another year (I was thinking when he gets older he isn't going to want to be in HS when he is 20). I asked them what is going to change and what is he going to gain from another year of K. They weren't able to answer. Cris was speech delayed and now he has been diagnoised as selectively mute and he is receiving OT because his fine motor skills are lacking. I have Cris' IEP on October 2nd and I'm not looking forward to it. He is behind the others in his class. We are having testing done to see if their is a possible learning disability. (His dad has one) He is struggling in 1st grade. I won't lie. Colby is completing his 3rd year of PreK this year.
When I was in school there was a young man that was held back in K. He may not have noticed but the other kids noticed. I rember him being teased about it (this was 30 years ago). I went to a really small school so maybe it was more noticable than in a larger school. I know it is a really hard decision. You don't want to send them on if they aren't ready but if you do hold them back.....
Me 33, DD - O 13, DS1 -J 8, DS2 - Cr 6, DS3 - Co 5, DD2 - E (11/10)