At the end of the 19th century advertisers stressed that the baby's intake could be accurately measured with a bottle. Today formula companies emphasize the constant refinement of their products. This is progress. They use scientific language and graphs to demonstrate how similar their products are to human milk. Our society simply does not know what a truly normal baby is like.
Babies are breastfed in the context of bottles and formula.
It is assumed that mothers do not have enough milk for the first two or three days. In the past it was shown that formula intake was a shock to the baby's system so it was recommended that the baby have nothing, or perhaps just water, for the first 24 hours. Many health care practitioners have no idea how long a baby should stay at the breast or how often to feed the baby. If it takes a baby 10-15 minutes to take a bottle, that should be long enough at the breast. Health care professionals may be looking more at growth charts than at the babies they care for.