At what age should children stop behaving as if it's their home? I mean rummaging through cupboards taking any food they want, while never lifting a finger to help wash up etc. My DSCs are in mid to late 20 s. Actually when they were teenagers I I'd try to make them help, but don't want the aggro for a few days' visit, but I find it extraordinary that adults just sit merrily hoovering down food while never offering to cook or load dishwasher etc