Here's a 2-minute clip of my kids chiseling lap joints in the studio. They love it. I prepared the boards with several table saw kerfs to give boundaries and easy stock removal. We review proper technique so that the joint is well made, the tools are protected, and their little fingers are safe. This is the sort of exposure that they can build on in the future and go farther than I could ever hope to. As Louis Armstrong sings, "...they'll learn much more than I'll ever know..."