> Welcome to the 19th century! Which is when mail redirection to a new address was introduced in the UK.
That’s not the same thing. Everyone still has your old address and you need to update it with them. Not terribly painful if you move once every 5 years. Pretty annoying and error prone if you move every 6 months.
Which is rejected as a valid address by many banks, government forms, etc. I want something that the post office guarantees has a real person behind it so I can use it for literally everything that requires an address.
I do this, any bureaucratic organization that I want to be able to reach me (very very few) gets my PO box, which has remained the same across three addresses.