Whether you planned to have children or not, I think it's safe to say once our babies were born into the big wide world, we vowed we wouldn't do things with our children that we later went on to do. One of my friends vowed her children would never have a dummy, only to give in when her firstborn was two days old, another friend vowed her children would never participate in Trick'or'Treating, claiming it was a form of begging, another vowed her child would not eat sweets or fast food - only fruit and veg as snacks, and I vowed I'd never swear in front of my child.
It seems that me and my friendship group aren't alone in our vow making though, other vows parents seem to regularly make are I will never formula feed my baby, I will never co-sleep, I will not let my toddler use the iPad, I will never let my baby eat jars of ready-made baby food, I'll never give my child snacks to keep them quiet whilst shopping, I'll never use my finger to wipe dirt off my child's face, I'll never let them have a TV in their bedroom and I'll never let my child watch TV in general.