I used to work with a guy that was from China. He only had a first in a last name. He was going to college here and the college required everyone to have a middle initial as part of their login. They just used his last initial as his middle initial.
Wait does everyone there have a middle name? I'm Dutch and I don't have a middle name. I figured that was quite common also in the English speaking world
He's the only person I've known here in almost 50 years without a middle name. It's quite possible other people haven't had a middle name but it's never come up.
Not true, I am a naturalized US citizen, and don't have a middle name - it was never an issue and I was never asked to come up with one. My son was born in the US and also doesn't have a middle name.