Lots of young EAs are struggling with the issue of whether, when, where, and how to have kids, and whether becoming a parent will undermine being an Effective Altruist, in terms of opportunities costs such as career, time, energy, money, focus, and values.
For whatever it's worth, I'm happy to answer any questions you might have about parenting -- its pros and cons, ethics, practicalities, etc.
Background: I'm a 57-year-old dad; I've raised a 26-year-old daughter and a 6-month-old baby. I've also helped raise a teenage step-son, and I come from a big, close-knit family (I have about 30 cousins.) I've lived as a parent in the US (mostly), UK, and Australia. I'm also a psychology professor who's taught courses on parenting-relevant topics such as behavior genetics, educational psychology, evolutionary psychology, human intelligence, evolutionary game theory, and decision making. I've been involved in EA for the last 6 years, and I have a pronatalist orientation, with an interest in population ethics, reproductive bioethics, gamete donation, and cognitive and moral enhancement. I'm not an expert on every practical or scientific issue about parenting, but maybe my perspective could be useful to some EAs.
In my experience as someone belonging to the WEIRD demographic, males in heterosexual relationships provide less domestic or child support, on average, than their spouse, where by "less" I mean both lower frequency and lower quality in terms of attention and emotional support provided. Males seem entirely capable of learning such skills, but there does seem to some discrepancy in the amount of support actually provided. I would be convinced otherwise were someone to show me a meta-analysis or two of parental care behaviors in heterosexual relationships that found, generally speaking, males and females provide analogous levels of care. In my demographic though, this does not seem to be the case.