Is it safe for a child to eat sushi?

I know they say not to eat sushi if your pregnant and not to feed it to small children. But my 8year old has been asking to try it. Any time he sees anything about it he wants it. Im not sure if I should let him or not. I don't want to give him anything that will make him sick but I also don't want to deter him from trying new things. So my question is do you think it would be safe for an 8year old to eat sushi