Just an update, my niece and nephew live with us. I suggested that my nephew, who is 11 right now, learn CAD since he want's to be an engineer of some type when he grows up. He took me up on the advice and has been using Tinkercad. He LOVES it! I'm so glad to see him working on something like that rather than wasting time on video games or something else. His school also has some type of CAD and 3d printing program they are setting up. He brought home a paper the other day that I had to sign to allow him to join the after school program that teaches them how to use 3d printers and more. Pretty excited to see this all happening!