DD age 7 has terrible manners. She hardly ever remembers to say please and thank you unprompted and she often orders me and her dad around ("go and get my X") or rejects things offered ("I don't want that") without saying what she would like.
We constantly remind her to say please and thank you and ask her to rephrase her demands as polite requests but it doesn't seem to have any impact on making her generally more polite.
How can we improve this? What would a reasonable sanction be for constant rudeness. I'm so embarrassed that she must be like this at her friend's homes. No SEN (although she has some ASD tendencies so who knows what the future brings). DS4 is, in my view, normally polite for a 4 year old. I don't want him picking up bad habits.