Yes! I think intrinsic motivation is #1. We are born curious. Elliott Hedman shows with biosensors that the feeling of learning is addicting. Lots of clues for #edUX design! Check it out: 7 Ways to Help Kids Feel they’re Learning:

https://medium.com/@elliotthedman/7-ways-to-help-kids-feel-their-learning-80f4abbeefb0