Personally, I have done a child care course in high school and dealt with all the different classes (newborn-pre.K). As well as I babysat my younger brother growing up, I babysat all of my younger cousins daily (there is 4 of them, ranging 12 being the oldest and the youngest turning 3, I babysat them from the time they were newborn until now), I also babysit my newborn cousin pretty frequently (2 months old)