I am very fortunate to have parents who know grammar well. I do think it is much easier to learn Latin, Greek, and Hebrew if one has a solid grasp of the English language. However, grammar education today is in a shocking state. I remember my first year of college, when I was attending a community college, going to an English class where we were supposed to critique each other's work on the basis of getting the structure of an essay clearly outlined. My colleagues could not even put together a complete English sentence. And they were in college!
To quote the learned professor, "I wonder what what they
do teach them in these schools."