Only golf may be more difficult....

What's in a skill?:

"Childcare is hard. I would far rather do almost anything else than care for someone's baby full time (I am told I will probably feel differently about my own, in the event that any arrive). That doesn't make it skilled. Cleaning houses is also incredibly difficult. But assuming that one has had a semi-normal upbringing, one can master the tasks involved in well under a week. After that, the main skill is not jumping off a bridge on the walk home."