Just think about that. The mere idea was considered to be so funny that it would make a good basis for an entire show. Not a very good show maybe, but still. Now things in the USA have changed so much that it's not uncommon to see huge some muscle-bound guy with gang tattoos pushing a stroller down the street, and not looking the slightest bit self-conscious about it.
Of course, some prejudices do linger on. When my first daughter was about four months old, I had already been watching her full-time for about two months. She was completely accustomed to the idea that daddy stayed home with her while mommy went out. But she happened to be crying once while I was holding her at a friend's house, and someone just had to make the comment “you're not the mama, she doesn't want you!”
I bit my tongue- okay, I bit it rather hard. Economic reality has forced most of this massive social change, but that doesn't mean dads are incompetent or a second-best option as caregivers. I take care of my daughters during the day, and I am good at it. It is simply no longer the case that the man goes out to a construction job or an office somewhere and works all day while the wife stays home to watch the kids. Modern families have schedules as unique as their specific circumstances.