=========================================================== ...'Typical' divorce reasons such as physical abuse or infidelity would simply be handled as crimes. ===========================================================
Would you like to see the man prosecuted for infidelity if his wife had become frigid or otherwise incapable of having sex, with his being unable to divorce her? I believe this dialog can safely proceed on the assumprion that "no-fault" divorce is here to stay.
In addition to my previously posted comments, I rhink no obligation should be incurred or implied between the parties unless specifically required in a pre-nup, which would have to be written in accordance with real contract law and with the parties entitled to have full disclosure as to the meaning of the contract--followed by a 30-day "cooling off" period before they could wed. During this time they would have to attend premarital counseling and education.
As far as CS payments and CP designation are concerned, I have often thought that it would be interesting to require, experimentally, that the parents work that out among themselves--failing which the children would be removed from the custody of both parents, and the parents would be assessed an equal charge for their care. The parents could be allowed visitation rights at the facility where the kids were residing, or even at the home of foster parents, but they may have given up their right to raise them because of their infantile, selfish determination to put their wants--and acrimony toward each other--ahead of the welfare of the kids and their companionship.