DS8 is in the 97th percentile for height and weight, and has always been the biggest kid in his classes. He loves to make friends with kids both older and younger than him.

He was being bullied by a little boy his age who did not come up to his shoulder last year. So...it's more about your own confidence, how you carry yourself, and what you will tolerate from other people than it is about your size or your age, IMNSHO.