For Caroline and Stephanie, it is their privat life, I am sure that they are thinking to her but she is dead since 1982, They were young, single ( 17, 24,25 ) 35 years passed for the three children, more years after her death than before her death. they married, had children, Caroline lost her beloved husband and stayed alone with 3 young children. she married again but her marraige did not work, now she has grandchildren, Stephanie married , divorced and had 3 children. They loved their mother and still love her but they had sad events ( divorce, their father died ),I don't see why they would need to speak about their mother, and speak and speak, I think that Albert is speaking too much about his mother, he already said what he said in this interview. Stop the nolstalgie , there is the future. but it is an interview for a america TV, america is still pride that her citizen became a princess . But Albert is repeating
This year, there were to much interview given by William and Harry for the 20th anniversary of the death of Princess Diana that I loved a lot. Now William is father of soon 3 children and Harry is happy with Meghan, they have their lives to do without to be too much nolstalgic or sad
For the grandchildren of Grace, I don't see why they would talk about a grandmother that they don't know, she is dead before their birth, there are a lot of paintings of P grace in the palace in the home of their mother. They are living in the present as other grandchildren who lost a grandmother they never know. and we cannot compare with Georges and Charlotte who are still very young to speak about Diana, we will see when they will be around 20 if they will speak a lot of their grandmother.
I remember of the death of the queen Astrid of Belgium, she was very young when she had the accident, she had three young children ( 7, 5 ,1 year and she was again pregnant when she is dead), a lot of people cried aswhen P Grace is dead, the people of Belgium are still remembering of her but the years passed, there was the war, the children married , Baudoin became king but we never heard or saw interview s of Baudoin, Josephine Charlotte and Albert in the newspapers
In Monaco, there are a lot of photos of P grace, there are avents recalling P Grace but I think that the sadness to lost their mother is privat , they have not the need to speak in interviews in newspaper and they are right.