Shame it's far too late for our 4 boys, and yes, paying a mortgage with one income whilst covering the extra costs that kids bring is difficult - but worth it.

I was previously an employer, and see this as a reasonably workable system.
That said, when the director of another firm was told that my site administrator was pregnant again (second child) he remarked "Why don't we hire bitter old crones like xxxxx?" *

* Name of our head office receptionist deleted

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A nation of sheep will beget a government of wolves.