Had lessons when I was about 12/13. Tutor insisted I play right handed. I did try, but couldn’t get it, it was just wrong. I write right handed. Gave up.
Started getting interested again in my late 30’s. Was speaking to a guy in a local shop, explaining my dilemma about left vs right. whilst talking, he handed me an acoustic and said “strum that”. I instinctively used my left hand.
Apparently, most right handed people will clap holding their left hand relatively still and use their right to strike the left. I do the opposite, despite being generally right handed. Kick with my left foot though.
Bought an acoustic and only (with semi regular practice), do I feel I’m improving, at 53.