I had a talk with a guy today, who is in the middle of the same kind of problem. It surfaced quite innocently, but the conversation came around when he mentioned that he and his wife(married about 7 years, he is the 2nd husband), live in a house that is over 5,000 sq ft. I had asked him "who cleans this place?"
He said she does and I help, but none of the kids(3 living at home - either in college or high school, and one(21 yr old) recently moved back in, because she found it too expensive/difficult, financially, to live on her own.) Mom lets them get away without doing any chores, whatsoever! I literally did a double take on that one.
He is at his wits end over the situation, has recently suggested he and his wife see a counselor, which they did; a pastor at the church they attend. It seemed to make sense to her at the time of the counselling session, getting the kids involved with chores around the house, but later, when they got back home, she reversed her feelings.
He's still looking for a way to get through to her - especially, and get this one! - SHE was the one to make it a condition of their marriage that he, the new husband, would have to make a serious commitment to discipline the kids as a partner in this contract. Yet she is the one who calls him mean to the kids, and that he does not love them! U F B!!
He told me he still loves her dearly, but this ongoing battle IS driving a wedge between them.