There seems to be a growing divide here. If I were to meet a WO or NCO or even a young lad at a social event i would introduce myself as " Hi, I'm Bill Bloggs". I would never, ever dream of calling myself "Hi, I'm Lt Cdr Bloggs". Why....cos "Lt Cdr" is not my name.....
If I were to meet a WO or NCO or even a young lad at work then I introduce myself as "Lt Cdr"....