They learn to interact with another significant adult.
Grandparents? Neigbours?
"The family also tends to have more money and poverty is one of the worst indicators for child outcomes. "
Poverty? hmm, yes well if you're just talking £sd but there's no buying back the time you missed.
"The parents have a more equal relationship which isn't sexist and both tend to pitch in with chores at home and are happier because of that,"
pmsl - when? where? evidence?
"fewer rows and more equality over all and the marriages tend to last longer as there isn't a wife who has got fat and dull adn home and a husband out at exciting work things tempted by his secretary."
Oh we're talking corporate family life are we. What about the factory worker who hasn't got an exciting job and certainly no secretary and who says his wife got fat? It's more likely to him on his 2 hours lunches or down the pub every night. I would suggest there may be more rows too cos you're both too knackered to do anything more after work and can't wait to get the kids in bed so you can couch potato all night.
"The wife remaining interesting because she has a career so the children are happier too."
Who says everyone wants a career? I'm sure the kids are cock-a-hoop to listen to mummy's bedtime tales of boardroom wrangles or conversely stuffing the giblets into chickens.
Not having a go at working parents just playing devil's advocate. Where is this cloud cuckoo land?