Yup the young lady is 6 and the lad's almost 3. My daugher used to help me all the time with the car. Now she helps a little. My son? Well! His last effort was putting all my tailshaft loop bolts in a 14mm hole in my box chassis. The only way to get them out was via the same hole they went in. Fun!
He tries to help. It's great! Really!
Both of mine are awesome. Just can't wait till they are old enough to move out. ROFL.