On my morning walk with the kids to their elementary school, I was thinking some of the same thoughts expressed here. What will my kids' general take on life be like compared to the "traditional" childhoods most kids have where one or both parents work? I haven't worked in 1.5 years and my wife is down to 4 days a week with a week or a month off here and there, and she's leaving for good probably within 6 months.
So far, they seem to not really care that I don't have a job. Their understanding of our family's finances is pretty good. They know that we have investments, investments pay us money, and that we have "enough", and that mommy's job is optional. They don't really know what we have (we've told them we are millionaires, then we get questions like "sooo... we have like $29,000?"). I think any amount of money larger than a few thousand $ is just as large as a million to them (at age 8 and 9).
We have discussed the "are we poor?" question. 80-90% of their classmates receive free/reduced price lunches, therefore are of low to moderate incomes (what some might call "poor"). However many classmates have blinged out $100-200 sneakers and some have expensive cell phones or other fancy gadgets. They get that we could spend money on all that stuff, but then we wouldn't be able to spend money on other things (robotics or moviemaking camp, international vacations, etc).