About 7 years ago, my wife and I adopted a little kid, we now have biological kids though. I love this boy, he's humble, kind and brilliant. He's my son and I'll always see him as such. Last night in bed, my wife suggested that we tell him that he is adopted. She said we tell him now so he doesn't hear from other sources and keep grudges against us. But am scared telling him may shake his confidence and affect his life adversely. He's only 9. I don't wanna lose my son......and we don't even know his parents...I told her we could keep the secret forever....pls advice me