There's nothing humiliating about taking care of your children. Staying at home and caring for your children is hard work and means a lot of responsibility. An office job is a walk in the park compared to that. I don't see why the social roles should be decided just by the set of chromosomes one has. Parents should work as a team. If they can't divide the responsibility equally, it's best that they divide it in a way that is most beneficial for the family. The one who can earn more can work and the one who prefers to take care of the children can do so. For me, it doesn't make a difference if the mother or the father stays at home. Also, just because someone stays at home, doesn't mean that they don't work. What if the husband is an artist or a writer? He might not earn enough to support the family, but his work is valuable nonetheless.

My wife works 2 days a week and I look after our almost-2 year-old in this time. Teaching is less exhausting work but I wouldn't miss the time I have with my son for anything. It has brought me a lot of happiness and I've had to change some of my easy-going ways.  

In the Netherlands, it is perfectly normal for a man to raise children and a woman to work. Some of my friends are doing the same. I don't see any problems. In most cases, however, both parents work to earn money.

Whatever makes the most sense for the family is what they should do.