Pro: Easier Form of Soothing
The main reason pacifiers are a popular choice for parents is due to their ability to soothe a baby. Infants are born with a natural reflex and desire to suck to help them with breastfeeding. This reflex also allows them to soothe through sucking.
Some babies are good at self-soothing, but it’s not entirely common. Instead most will soothe by sucking on a finger or their thumb, or they may even choose to suckle at the breast without eating. Babies’ natural desire to soothe by sucking can be solved with a pacifier.