We have been going to the quiet pools since our DD was 18 mos old. She can swim easier w/ her swimmies w/ less people. I don't think people have a problem w/ younger kids in the quiet pool unless its late at night. And you being a concerned enough parent to ask says to me you won't have your young kids in the pool at midnight. Enjoy!! WDW was made for everyone including our younge ones. I think by "quiet" pool they mean no slide or theme. Have a great time!