I was in Taiwan years ago and had a young engineer as my guide. He introduced himself with his given name, but then said “You can call me Carl.”
“Carl? That doesn’t sound anything like your given name!?”
“It was given to me in grade school when we all started learning English. She went down the row - Allen, Bill, Carl, etc. and those names stuck with us!”
Thats awesome. Opens doors, breaks down barriers...So happy English is the main language of the world but I too wish I spent more care in acquiring a foreign language...although I do speak Korean conversationally because that’s where my mom’s side of the family is from.