What are a father's obligations or responsibilities to his children? Is there any guidance on what happens to those obligations or responsibilities after a divorce? Is there any guidance on what a father should provide in terms of financial and emotional support?
See gemarah Kiddushin 29 which says a father is obligated to circumcise his son, redeem him (if he is a firstborn), teach him Torah, marry him off, teach him a trade, and (according to some) teach him how to swim. See daf 30 for chinuch.