This connection might not reflect the proper view. A persons education should be independent of what you are doing, working or stay at home. It probably should be viewed as life time project.
Of course one must at time give priority to learning to satisfy your job requirements. And then the fact is, education is available from more sources than just college, as more and more information is readily available without paying tuitions.
Then people need to get their priorities straight, there is no more important thing to do than to raise your children to be ready to be adults. If you have the cash, perhaps you can hire a person more qualified than yourself or your wife but for most of us, it is out of the question. My wife and I did the both work for a couple years with our first child. It was terrible. She then stayed home until they were both over 12 years old and most of the time in school. Then she went back to work. Would more money be nice? Yep for sure, but not worth the cost.