The advise on raising kids starts rolling in as soon as your baby bump pops. Everyone from your grandmother to the woman at the check out counter in the grocery store wants to pass down her wisdom on all things motherly. Although I truly believe these people mean well and their heart is in the right place, much of their council is just straight up wrong. With access to years of research and information on parenting, you are able to sift out the outdated behavioral advise you should ignore and stick with what has proven to be effective strategies for promoting desired behaviors.
It's not that surprising that some bad information is still floating out there in the parenting sphere, especially from older generations. Most modern moms have a world of information at their fingertips, but not too long ago mothers were taking tips from the books of a few celebrated child psychologists and swirling it in with what their own mother taught them. They weren't comparing one expert with the next and analyzing research on which to base their parenting style. Now that you have this knowledge available, you can see why some of these old ideas need to be put to rest.