[potatote]

Hmm...a bit different experience by me growing up and graduated from high school in a poor Southeast Asian country.

There, a lot of parents (esp. from lower and mid-middle class) invest a good chunk of money/resources on their kids' education. BUT, unlike this article claims, they aren't that heavily involved in kids' homework. The parents in my country seem to believe that once they pay money to send kids to after-school classes, the progress in students' learning is up to the teachers in those after-school programs.

Most of them don't have time or mental energy left to tend to their kids' homework because they are too busy working (both parents working is typical in poor countries too) and/or running errands (thanks to inefficient bureaucratic system and insufficient infrastructure such as frequent power outages, life's chores take enormously more time than they would in developed world...)