job
1    [job] Show IPA noun, verb, jobbed, job·bing, adjective
noun
1.
a piece of work, especially a specific task done as part of the routine of one's occupation or for an agreed price: She gave him the job of mowing the lawn.
2.
a post of employment; full-time or part-time position: She was seeking a job as an editor.
3.
anything a person is expected or obliged to do; duty; responsibility: It is your job to be on time.
4.
an affair, matter, occurrence, or state of affairs: to make the best of a bad job.
5.
the material, project, assignment, etc., being worked upon: The housing project was a long and costly job.

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According to number 3 Brit it is a job. But I agree, it's also a father's job as well as a mother's.