Keep in mind that this was the norm a 100-150 years ago - if the woman lived through it.

Read the biography of Charles Wesley's mother. She was organized and schooled her children (don't remember how many but a lot), spent time individually with each one daily, devout to God, devoted to husband. I don't know if she had any servants or not. I am assuming she had some - but then we have washers and driers today.
I'm not advocating large families, though we had 5 children, but since it is not the norm people tend to shake their heads in wonder. At least they are Christian and he is not a polygomist. As for being tax exempt, I don't know if they have incorporated their family or not, but I have heard of it being done (prior to the Duggars). I assume they have developed a sense of "ministry" and therefore become tax exempt. The incorporation status gives them some sort of benefits as well.
No, my husband and I were not incorporated. We were simply in the poor house for many years.

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Draw me my Saviour, How precious Thou Art!
Success is not always measured by acceptance.
Success is also measure by completion and endurance.