I took away from your article that the problem was that we teach kids to use computers through UIs that conceal the computer from the user, and so we teach kids

I took away from your article that the problem was that we teach kids to use computers through UIs that conceal the computer from the user, and so we teach kids very nearly nothing about computers. Excellent point, thank you for making it, and made on the basis of your experiences. Better be condescending than fail to make the point at all for fear of being rude. A practical point about teaching: apparently we are soon to see desktop-quality computing machinery for sale under the $100 price point. This might change the viability of the "get a computer just to learn about computing" (as opposed to a "general-purpose" computer that means access to Windows /OSX software ecosystems) for many families. For schools, it might become practical to ask families to buy/ rent such machinery in order to take part in the Linux-based "Inside Computers" course.