Why do people think SAHMs a lifestyle choice? Most people I know are SAHMs because they can't afford the childcare to make working worthwhile! With only 1 income coming in, the 'lifestyle' is one of watching every bloody penny.
Most of my well educated friends who had decent jobs - not top earners in the City, but earning over £30k each year. Had children, and then found they couldn't afford to go back to work as the childcare (+ commute and parking) would make no financial sense.
Their husbands salary means any tax credits on the wife's wages are minimal or zero.
I am fed up of being thought of as loaded as a family just because I don't work. I don't work because I can't afford to!!