The good Jewish mothers who do all those things, do it out of devotion and reverence for Hashem, His Torah, and their fellow Jews. It is not one bit natural or innate in the sense that it is not something that they strove for. It reflects on her self determination and personal growth.
Such a woman absolutely loves Torah. And whatever these is Torah knowledge to be gained, she is all ears. Assuming time, money, and energy allow for it. A passion does not allow for one to just focus on certain tasks as the end all be all.
If a woman would really have no exposure to the ideals of Torah, would she then sacrifice for the right things? How would she even know what to value? And how would she judge what is better for her sons? And most of all, how would she negate all the secular influences in her life?