Romans couldn’t understand why Jews, Germans and Egyptians never ‘exposed’ children. I.e. why they never drowned or abandoned newborns that were unplanned, surplus, illegitimate or deformed – but instead decided to raise them all.
The Romans considered this very inefficient management. Contraception, abortion and infanticide were all legal, within limits. After a birth the midwife placed the newborn on the ground, and it was the father’s choice to pick it up or to abandon it. Abandoned babies were then exposed in a public place where – if they were lucky – someone else would pick them up. A newborn wasn’t a true person until it was named at 8 or 9 days.
Why keep a baby you couldn’t afford, or didn’t want? If later you wanted one, you could always buy or adopt; just as, if you wanted a particular adult, you could always adopt them as your child or arrange a marriage to bring them into the family.
Surely your family should be managed at least as carefully as your farm animals?