Obviously, breastfed babies are happiest and healthiest; however, sometimes families have to use
infant formulas to nourish their
young ones.
Obviously, a «conversation» looks very different with much
younger children: with
infants, it might be taking turns exchanging giggles or coos; with toddlers, it might be repeating and expanding their sentences; and with older children, it might be asking «who, what, where, and how» questions.