Child Labor or not to use Child Labor

The kids are playing and my hands are getting blisters from raking. Do I buy more rakes and make them help this weekend? I finally retired the rake after three hours. I did not run tonight but got a good workout in the yard. Now my kitchen floor is so bad I don't even want to walk on it because of all the dirt that has been carried in. I got out our floor vacuum and my youngest boy (A) is taking care of the floor. I feel a little bad that I am sitting doing this while he is "working". He is however singing "1,2,3 Like a Bird I sing..." so maybe he finds it fun. My Dad used to say if you hum or sing that means you are happy.