He’s been threatened by the Taliban since he went to Afghanistan when they singled him out & more or less placed a bounty on him.
Harry’s Mum died being pursued by the press which could have been prevented with security. The press alone are a risk for them.
Harry is the son of on of the most iconic women and son of the King of England, his wife whether you like it or not is hounded by the press & they’ve been relentlessly pursued.
Even if the risks are low the stakes are high - it’s his family.
He wanted to leave the royals but his face has been engrained into the public consciousness since birth. His privacy and any chance of anonymity was never his to have.
We walk into a life of debt hanging over our heads but so has he… he’s trapped trying to find ways to afford his own protection and build some sort of brand or image that funds it & a lifestyle that is somewhat sheltered - privacy is expensive .