He's very smart and taught himself a lot of things, like how to read, how to tell time, and he was even planning to kill himself at a very young age so that Emma and Norman could escape.
Isabella's mind: _"if i could've shipped that Norman brat the wedding would've been real"_ Demon #1: _"you know im bored of my job, i hate eating children."_ Demon #8: _"same, we should quit our jobs because we just get to eat children 1 time a month"_ Grandma: _"im in let's let the kids escape"_ Isabella: _"g-guys? Damn you grandma!!!"_ Norman: _"nice, im actually getting adopted this time."_