The rhetoric is so frequently contradicted in practice. Look at the salaries paid to babysitters, pre-school teachers, child care workers and domestics. They are anything but handsome. Look at the Occupational Index of the U.S. Dept. of Labor which rates cab driving as a profession requiring more skill than being a foster mother. Being a foster mother is evidently a job which requires little talent.
Problems faced by foster mothers and natural mothers are astonishingly similar.
The conclusion that motherhood in general requires little skill implacably follows. Look at the lack of realistic preparation in North America for domesticity in the form of supervised training. The implication is that any one can do it with few if any qualifications. Look at the lack of prestige of those courses which do attempt to provide this kind of training. Pride is a function of prestige.