I explain:

You can explain to me why if a man does not give more than he ought by law, he is a fool, and if a woman does not give more than she ought by law, she is a good man.
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According to the law, each parent must not only maintain the child, but also participate in the upbringing. So if the father does not take the child to the kindergarten, to the clubs, to the clinic, does not sit in the evenings 3-4 times a week helping to do lessons and reading fairy tales for the night - then it is logical to add to the alimony money for a babysitter. And the woman and her salary, and time is wasted, and the father, according to the law, 2-3 thousand, and good!

No, of course, if the child lives with the father, the same question to the mother. This happens much less often.