Anecdata, but I spoke to a mom here who declined an epidural during childbirth by choice. Her son is a champion big wave surfer.
...do you think that same commitment might have shown up in other ways in her parenting? such as in the foods she fed her child, or the activities she encouraged that child to do?
man, I remember when I used to come to HN because the average intelligence level of the comments was higher than it was on reddit.