As a father of 3, let me attempt to answer this question for you on a personal level. For me, "taking care of" my kids involves me keeping a roof over their head (in a 2-parent home), providing stability, putting food in their mouth, spending quality time with them, teaching them morals, showing them support, being present at doctors appointments and raising them to become respectable individuals, etc... Their mom and I do all of this together. We share responsibility. We're not married (not yet), but we do share a home together. As I type this, 1 of my daughters is asleep on my chest right now. It's just a bonding thing. I like to bond with all of my kids.