I am an italian male engineer, and my wife is an hungarian female psychologist: trying to grow a baby together causes cultural clashes about every 2 hours[0].
Moreover, my feeling is that, much like diets, parenting is a very fashion driven thing. At some point french style parenting was hip, then nordic style parenting, then asian style parenting...
I find it unsurprising that new fads come up, and something good will probably stick, but personally, I am a firm believer in the CTFD method[1].
[0] weaning at 9 months, are you crazy? why the heck are we allowing her to eat by herself, she only makes a mess! Of course it's ok to eat parmigiano at 6 months! Stop picking her up! Pick her up more often! Do not let her cry! Kids should learn to calm themselves! etc etc
[1] calm the f* down, kids will be ok http://www.thedaddycomplex.com/post/55268573331/latest-paren...