I was actually born in Kidderminster but my family moved to Erdington about two weeks after I was born. Family moved south in the eighties and have been down here ever since except fkr a three year spell in Milton Keynes and Redditch. I have lived in Horsham since 1992 and I see quite a few Villa shirts down here - and they are always exiled Brummies for the most part. I was impressed how many Villa fans had come up from the coast when I boarded the train up to London for the 2018 play off final - again the ones I spoke to were all with roots in the second city. As for Blues only living in Birmingham itself , I can confirm I always saw more of their shirts than ours in and around Redditch when I lived there.
You let them get to you too much, mate.