"The father's duty is to see that the children, the son, is raised very nicely so that in future he may be very happy. This is the duty of the father, to see, not that simply to feed him and make him fatty. No. In the śāstra it is said, pitā na sa syāt. One should not become a father. This is contraceptive. Pitā na sa syāt jananī na sā syāt: "One should not become a father, one should not become a mother, one should not become a guru, one should not become a relative, one should not become a caretaker, one should not become the king..." Who? Na mocayed yaḥ samupeta-mṛtyum: "One who cannot protect the dependent from the clutches of death." This is sastric injunction. So how much the father and the government or the guru should be strong so that he can save his dependents from the clutches of death."
Śrīmad-Bhāgavatam 6.2.3 -- Vṛndāvana, September 7, 1975