Utility is an economic term for a person's overall well-being and satisfaction. Consumers play a role in the economy by maximizing utility, which means allocating their scarce resources, such as limited time or money, most efficiently. Utility maximization is different for every person.
You can start using it right away but it was suggested to us by our midwives to hold off until 6 weeks as pacifier use can mess with their breastfeeding latch (it's a different kind of sucking).
2 a nipple-shaped object used by infants and children for sucking. The safest pacifiers are constructed in one piece, are large enough that only the nipple fits into the mouth, and have a handle that can be easily grasped. The American Academy of Pediatrics recommends waiting to introduce a pacifier until a baby is 1 month old and breastfeeding is well established.