Same with my eldest brother. The teacher actually tied his left hand behind his back to “train” him to write right handed. He has terrible (though legible) handwriting. My next oldest brother is left handed, and my Mom made sure he was allowed to write with his left hand. I was ambidextrous when I was younger, but no longer.
I went to college in the late 70s, and there were a number of co-ed dorms on campus, including the one I lived in. First floor was the guys, second and third were the females.
Best Bud Forever