Breaking Child Labor Laws?

As Brian and I were getting ready to do some work outside today, Zach announced to us that he was ready and wanted to cut the grass. He's only 7. I'm sure we're either going to have children's services called on us or else no one will ever let their kid come to our house again- because we let him. One of us stood/sat and watched as he powered his way through it. God bless him, he did it. Granted, the first attempt was full of places that needed to be 'helped'- but Z wouldn't let us help- HE FIXED IT HIMSELF. So, I just sat and watched. Once I find the cord for the computer, I'll download pics of Zach owning the lawnmower.