> does not scale beyond the absolute basics

> if they are inclined

I agree with those, but I want to emphasize how important it is to ensure that the "absolute basics" remain accessible to the least inclined until they discover if they want to scale up to the next level or not.

In regular shared classroom education, one of the toughest elements of accessibility is to ensure nobody ends up left out because of unfavorably comparing themselves to the stars of the subject. I myself was a star in computers, but a total and abject "I don't want to be here" failure in physical education - I remember how it feels on both ends.