She was rude/insensitive. Whether a mom is a stay at home mom, or a work out of the house mom, is such a hot button topic, and also such a personal decision. People need to respect that others make decisions based on what they feel is best for their family situation.
When I was pregnant with my second child, the sonogram tech said something like, "Well, now that you have TWO, are you going to stay at home?" I mildly replied that I intended to continue working, and she said, "Well, it definitely is nice to have money to buy all of those nice things.." and I snapped back. "Like health insurance?!"
People really need to mind their own business in these situations. Some moms (like me!) desperately want to be stay at home moms, but really cant. If I quit, we would lose our small house and be on welfare. We already cut corners everywhere as it is.
Some women work out of the home because that is what makes them a better mother. They dont NEED the money so much as they need the stimulation. Not everyone can sit around making home made play dough, cleaning up messes, and doing finger plays all day and still be the kind of person they want to be.
On the flip side, some people look at stay at home moms as unmotivated or lacking a desire to achieve. Also wrong.
So yes - I have experienced this bias, and think that people need to stop trying to superimpose what is best for their lives on those of other people.