Did your mom come from the East Midlands?
Anyway, 3 million people live in the West Midlands. It’s the second biggest population centre in the country. There’s a lot of us about. Lots of us say mom. Deal with it!
Im sorry if I come across as arsey. But I am so heartily fed up of being corrected in my pronunciation / vocab. It happens so often and I’m fed up of smiling politely.