Who contributes more to a child's life? Is it the father or the mother?

I made a post elsewhere on something else & some guys responding... they contribute little.

One cried about looking after his kid for 7 months & he's got multiple kids with multiple women... when I asked if he contributed anything to their lives, in general, no answer.

Another cried about looking after kid for a few years & in communicating proved he doesn't really care for the kid, is narcissistic, whiny, and embittered. Not exactly a good influence.

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+1 y
Pick ONE parent. Yes both should contribute but pick one of the two.
Who contributes more to a child's life? Is it the father or the mother?
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