It'd still be a no. Things are never so straight forward and hassle-free even if the parents are on good terms. Besides, I know that child's needs would always come first. We wouldn't be able to just have random date nights or go on holiday whenever we felt like it, everything has to be meticulously planned and the fact that it's not even my own child would just compound the annoyance that would cause lol
True wallahi. That is too much of a sacrifice for someone that hasn't even fathered/mothered their own child.
In saying that, joint custody would do wonders for single mothers and they'd probably find it easier to remarry, if potential men knew they wouldn't have to provide or fully raise their stepson as dad is in the picture taking the kid half or a lot of the time. Too many dumb women allow their bitterness to cloud their minds or maybe they're afraid their ex wouldn't be attentive to their child.