How deluded you are! The folk in high society that Ham want to try & mingle with are notoriously guarded & discreet! The last thing they will want is Ham sniffing around them & their families looking for stories they can sell to the press!
And if they want the expensive security they can pay for it themselves & not expect the British taxpayer to pay for it...unless of course they can't afford to pay!
"My dear" you are obviously not from the UK as you don't understand the system. The true aristocrats actually look down on the royal family.
Being the kings son means jackshit if you can't be discreet & are not to be trusted.