My older sister, born in 1950, was not given food until 6 months, which was the norm promoted by pediatricians then, and about the time infants naturally started to be interested in food. 5 years later, due to advertising and the processed food industry getting a few seats on the USDA nutrition panels, my mother and her friends were urged to stuff us babies with pablum. The mother who got her baby to eat at 2 or 3 months was held up as the ideal. Guess which bunch of kids ended up with weight problems?