Keep in mind, not all children are 4. I have one "child" that is 21. My other is 7 and doesn't 'pee' in the pool. All that aside, the adult areas, pools, lounges, whatever, are adult areas. I do not allow my children (except the 21 year old, as he is an adult) into the adult areas. I have respect for not only the rules on board (and everywhere else for that matter) but respect for the other passengers. If people want or need or desire activity in an adult area, who am I to trespass on that. There are plenty of areas for the kiddies, I let my youngest go there.
I'ld Rather Be Cruisin'
Disney Magic February 4 2006
RCCL Freedom January 20 2008
Disney Wonder October 2009
RCCL Rhapsody of the Seas September 2011
Disney Magic February 2012
Disney Wonder January 2014
Disney Wonder to Hawaii 2015...I hope!