Most people will parent exactly the same way they've been parented (if it was good enough for me it's good enough for them because too lazy/stupid to do better I guess) and the ones that try to do different are going to make different mistakes. Some issues aren't going to come up til later and some issues are going to get caused by trying to stop/mitigate issues later. And this parenting technique that worked wonders for one kid will completely and utterly fail for their sib. There isn't a consistently better way, it's just having to consistently get better. And that's probably way too much hard work for most people.
I have now spent a decent chunk of my life researching learning styles and methods and child development with forays into parenting methods and I really don't understand why people adore sticking "purely" to any one particular thing so very much
Hmm, that last paragraph contains a good point.