LB, that was Joseph’s point. But as other posters pointed out, and I think I agree, that is not necessarily the point. It would be one small section of the plane for those people who need to sleep or work and are easily distracted. It doesn’t hurt the family or children in any way.
What could be a problem is if it becomes so common for people to choose that section of the plane and it leads to discrimination against children and people start to really look negatively at people flying with kids.
But as long as it is kept to one small section of the plane, it shouldn’t be a big problem. And I think that section should cost significantly more in order to avoid those problems. This way, people will realize that the norm is that people fly with kids.