Yes your friend is wise.

In my experience forcing someone to be "respectful" doesn't make them be respectful in the true sense of the word.

I would guess that your D has lost some respect for her mother, wouldn't you? Her mother will have to earn that back.

Me 57/H 58
M36 S 2.5yrs R 12/13

Let me give up the need to know why things happen as they do.
I will never know and constant wondering is constant suffering.
Caroline Myss