Im not sure how to say this but if your daughters grown up to be “ungrateful assholes” that is partially on you. Not all of it. Try to get it through how is your financial situation is. A 15 year old can understand way more than we give them credit for. If they think you are in the same team, they will look things from your perspective more. Saying how you grown up is not something they can relate to, they didn’t experienced that personaly.