Not indulging babies
Let us start off by saying that babies, under any circumstances, are not supposed to be left alone. For this habit, we’re going to look back at Dr. Walter Sackett’s 1962 Bringing Up Babies book. In it, Sackett advised mothers to not be too indulgent with their babies. Night-time feeds were not recommended, as well, even if your child is crying. The medical professional even claimed that giving a baby what it wanted would turn them into a socialist. Needless to say, these were crazy.