He knew how to handle it
Although the press did not leave them alone at any time, the family was able to take him properly and after Camilla married Carlos, she stated that she would not have been able to cope with all of it’s media pressure without her family, who had supported and encouraged her from the beginning, including, of course, Laura. Although she may later distance herself from all that, but her children supported her from the beginning.
Royal Blood
Many people believe that a person without real blood will never be able to be part of the Royal Family, that those who do not come from family with blue blood will not adapt or have what to have. Ask Meghan Markle after the number of tense moments she has experienced with Catherine Middleton. When Meghan joined the Royal Family, no one there accepted it.