Accidental Troll

They may not be inheritable traits but you could make an argument for nurture. There are a lot of people who use the word intellectual as an insult. Someone who devalues knowledge is unlikely to raise children who value education, hence not necessarily less intelligent but dumber. As far as laziness, plenty of people seem to feel they are entitled to things that they have in no way earned, that sense of entitlement could easily be passed on to their offspring.