Modernisation of the post-war monarchist system?

If anyone has read the opening chapter of Barbara Tuchman's remarkable book "The Guns of August", they will know that it starts with the funeral of Britain's Edward VII, the last time all the crowned heads of Europe were gathered in one place. After WWI, many countries divested themselves of their monarchist systems; Russia, Germany and Austria-Hungary. Following WWII, Bulgaria and Italy followed suit. The British monarchy, possibly sensing change, attempted to modernise. While King George VI had remained at the fore during the war, the chief function seemed to be giving speeches. None of these institutions really had much contact with their people, save again the British royal family, who toured the bombed parts of London and remained there during the worst of The Blitz.

Does Princess Anne's change echo the changes - needed or enacted - in the remaining monarchies of Europe in the post-war era? She starts the film complaining that she's not 200 years old. She finds her way out into the urban jungle and does what normal people do. By the time she returns to her role, she has experienced enough to know how detached from reality royalty is and how much she had been a plaything of her inner circle. She's only returned because of what her people expect from her. Those closest to her see her as a functionary and not empathetic to the lives of others. They do not because they are not. They are relics of the past and she knows she has to change them or the system. So is this an indication of how societies and monarchies in Europe were changed at the end of WWII?

Certainly the film has been compared to the real-life adventures of Princess Margaret and her former fighter pilot boyfriend, Peter Townsend. To live more like their people instead of being aloof was the only way they could survive.

(For the record, I am not a monarchist).