May 7, 2014 11:01:29 PM EDT
I think that if one parent takes on the primary care-taking duties, the other parent should take on a corresponding percentage of financial 'duties.' I can see a 50/50 situation only in cases akin to shared custody, I.e. where both parents are about equally involved in parenting. That being said, as somebody mentioned, this would also depend on the co-parents' individual financial capabilities, and what kind of arrangement feels fair to them.