Excellent point. I'm surprised that I've never heard this rational before. Compared to the other theories, this is definitely the Occam's Razor version. For

Excellent point. I'm surprised that I've never heard this rational before. Compared to the other theories, this is definitely the Occam's Razor version. For many women there is a good chance that their future husband will be the "breadwinner"... What's the point of compressing 40 years of work into 4, if you aren't planning on working 40 to begin with?