[roguecoder]

But you only have so much energy and learning takes energy. I know from personal experience that the more stressed I am, the more time and energy I had to put in to getting enough calories this week the less I have to spend on learning. Being hungry or sleep deprived makes everything harder. It can be challenging just to summon the energy to make basic day-to-day decisions, much less reach out and learn new things. It's why free school breakfasts and lunches do such good things for educational outcomes.

The easier it is to learn the more people will be able to get over the hump. It won't ever be everyone, but it's basic behavioral economics: the easier it is to get the same payoff the more people will do it.