i myself would put 'lacklustre effort' and therefore 'generic humans' down to the parents though.
i was very poor growing up
but in other ways i was richer than those with family house.
i had classic novels. i had 'ability to self educate' - even in the 80's
if anything, i am dumber now that i have internet access
as now i dont 'need to seek intelligence points' as i can 'just google' the thing i want/need to know
epiphany in that last statement
earlier it was a 'wanting to learn' and now its 'a quick google for the data i NEED to know at this exact moment'