While Prince Charles has his own youthful experiences, he should be talking to Harry how thankful he is that mobile camera phones were not around in his day.  He could also question Harry's judgment on the company he keeps.
Re the comment as to whether a complaint should be made to the Press Complaints Commission, who is going to complain about who, the British press, including The Sun, were only reporting news, whether it be in the public interest or not.  The complaint should be about the person who took the photographs and the media that first published them.  But of course the 'grey suits ' of the palace can not do this as it is outside the jurisdiction of the PCC.
What the public of Britain can  do is not buy any of the publications that they feel were wrong to publish the articles.  Are they going to do so, NO, that is not the British way, we just like to moan.