When it comes to reading in particular, this is normally done at home and there is a direct correlation between how much time a parent spends with their child teaching them to read and providing them with additional reading materials and how well they end up being able to read when they're an adult. And given that all students interface with study materials by reading, then it follows that a child with an involved parent regarding homework in general and reading in particular will have better academic outcomes.
We've got 60 years of popular culture that has actively ridiculed parents who DON'T help their kids with their studies.
I really don't give a shit about how well educated your parents were. If anything, your anecdote shores up the point you think you're degrading.