Martin, I believe that Celebrity made this decision based on politics.
I've always thought this particularly line was for adults more advanced in age. Much like HAL. Family friendly was not part of their plan. They do have childrens programs but only for certin seasons like spring and summer. I've never considered traveling this line, even though I have traveled Princess and the whole family loved it. My wife and I are cruising the EOS in April and AOS maybe in October. The best kids programs I have ever heard in the cruise industry. Some say better than Disney. You may want to look at RCCL and Carnival. Carnival is the only line that changes diapers. Princess will page you if your little one needs to be changed. Grand Princess is my favorite ship.