He absolutely loves having the bag carriers, ahem, security around him. We are supposed to believe that he wants privacy but it's so obvious that he relishes the attention. And always did, imo.
I would bet he misses that aspect of royal life more than anything else. The pomp and ceremony that he was able to take for granted for so long. The fancy cars, the police escorts.
I bet he loved being escorted to meet Charles, just like old times
![Winking face :wink: 😉](https://cdn.jsdelivr.net/gh/joypixels/emoji-assets@5.0/png/64/1f609.png)
... and then being granted such a brief audience hopefully reminded him of harsh reality.