I'm not saying a single mother can't raise good kids, but after raising a family, I don't think I could have done it alone successfully. As the mom, I contributed to part of their needs and their father contributed to others. Both important but very different. Not just that with kids comes all the meals; a good breakfast to start the day, lunches someone needed to pack, dinners, checking homework after school, baths and reading bedtime stories, making sure everyone had clothes ready for the following day and in between it all squeezing in running to special activities the children were involved in, and both of us worked. There were doctor's appointments, dentist appointments, optometrist appointments, etc. etc. etc. and it took both of us to get what was needed done.
Right now over 70% of all black babies are born to single mothers. But the birth of Hispanic babies to single mothers is also on the rise somewhere close to 50%. And white babies being born to single mothers has reached over 35%. There seem to be a lot of daddies missing in action.