This bothers me a lot because men tend to be very careless with their sperm. Making children, for me at least, was something I took seriously and it took me years to find the right partner to nest with and raise a family.
Don't get me wrong, the act of making kids (sex) is always fun and it's a great bonding experience, between parnters but consciously having and raising kids is like taking every plan you have and throwing it out the window.