Breastfeeding is also a big factor. Bottle feeding has significantly changed palate and jaw development. Breastfed infants work harder and feed more frequently. Bottlefed kids can guzzle milk or formula without working their facial muscles as much and formula keeps kids satiated for longer so they exercise those muscles even less.
Spaceman84 2 points 9 months ago
Breastfeeding is also a big factor. Bottle feeding has significantly changed palate and jaw development. Breastfed infants work harder and feed more frequently. Bottlefed kids can guzzle milk or formula without working their facial muscles as much and formula keeps kids satiated for longer so they exercise those muscles even less.