Keep in mind selection bias. The pool of people who would unschool their children is systematically different from the general population. Aspects of child-rearing unrelated to schooling (at least conventional schooling) and/or genetics probably played a role in determining the adult personality of their children.
Indeed. The eldest of them hypothesizes that it wasn’t so much unschooling that caused the good effects, but more likely other factors, most relevantly “the parents having bothered to make any decision regarding their children’s schooling”, which has been shown to matter in other contexts.
Keep in mind selection bias. The pool of people who would unschool their children is systematically different from the general population. Aspects of child-rearing unrelated to schooling (at least conventional schooling) and/or genetics probably played a role in determining the adult personality of their children.
Indeed. The eldest of them hypothesizes that it wasn’t so much unschooling that caused the good effects, but more likely other factors, most relevantly “the parents having bothered to make any decision regarding their children’s schooling”, which has been shown to matter in other contexts.