Why do people keep thinking parts of East London are in Essex?

You'll see it online, on, Reddit here and there but also irl with people always claiming Barking, Ilford and Romford are all in Essex, Romford I get cos its far east, full of geezers but guys... no.

Yes Ilford, Barking were historically part of Essex 50 years ago, you can claim it all you want but it doesn't change facts. Claim the sky is green, doesn't change reality lol.

I do find it mildly amusing when I've had this convo with people irl that are adamant that ilford is in Essex and I can't change their mind... but hey ho, Google is your friend 🫡