My mom held me back in kindergarten. I don't remember, but she says the school told her I wasn't "mentally" at the educational level that the other children wer

My mom held me back in kindergarten. I don't remember, but she says the school told her I wasn't "mentally" at the educational level that the other children were at. I could be upset about it, but I don't think it ruined my life or anything. Graduated high school at age 18.