I personally don't wear them. It's not about the sex appeal, but really don't need to, you see. I don't wear tight enough clothes that I need to avoid underwear lines. What are your perceptions of men who wear them?
I wouldn't find it odd. We live in a world in which everyone should have freedom to do whatever the hell they want. His choice of wearing thongs, wouldn't affect me or my life so I'd be like "Okay, whatever".
i don't wear them because I'm woried of underwear lines or think they are sexy. thongs don't "bunch up" around the groin area(painful in some cases) and don't ride up and give you a wedgie ALL day that you can't get rid of. I wear them because they are comfortable, minimal fabric, and supportive.