22. There Are Around 140,000 Stay-At-Home Fathers In The US
During the earlier half of the 20th century, this was the other way round. But with rising expenses, and reducing gender discrimination, more women are working. According to a 2008 estimate, there are approximately 140,000 stay-at-home fathers in the U.S. who are the primary caretakers for their children while their wives work outside the home.