"The parents intentionally give their children this autonomy and freedom because they believe it's the best way to motivate kids." This is basically the philosophy behind self-directed learning: unschooling as well as learning communities like Sudbury schools, liberated learners centers, and agile learning centers. I work at one of these schools, and our kids are really good at paying attention. ADD is a real thing a…
Of course the problem is that, even when something is interesting to the person at a high level, there may be subsets of that activity which are dead boring.