No, they do not all do these things. The offerings for just the dolls alone with a bottle do not eat, wet, drink, or poop. The ones with the diapers do one or the other of eating the doll food or drinking real water. if you want a doll that does one or the other, then just make sure it comes with a diaper. That is a sure sign that it does something. We list what each doll does in their separate summary paragraphs for a quick reference.