I know there is no Gemora on pirkei avos and we do not pasken from the Mishna. Still, how do your kids learn Avos 2:2 that Torah goes well with derech eretz and has bad side effects otherwise? Avos describes human reality. So, even if you have a psak l’kulah here, how do you deal with side effects?
Maybe ask your kid or maybe you are teaching yourself, will be interested to know.