What's left is mostly people post - letters, parcels, and post offices where the little people buy stamps and get their pensions. And so on.
Obviously paying out money to pensioners wastes everyone's time, so the current plan is to close hundreds of post offices to stop that little game.
So this is yet more 'reform' under another name - making an industry look bad by cherry picking the easy parts and giving them to the private sector, and then feigning indignation and horror as the rest creaks along without producing the stellar returns that every possible enterprise is supposed to magic into existence to keep the City happy.
Next we'll have privatisation, prices will rocket upwards, services will be trimmed back to the bare minimum, and everyone will be happy.
Apart from the people who actually use post offices. And most of the people who work in post offices.
But they don't matter. [shrug]