In my late 30's now. Been wearing sexy bikini, thong and g-string underwear since my early 20's. Started wearing speedos in public in my mid-20's, now mostly bikini, thong or g-string swimwear. Nothing but thong underwear. In the best shape of my life so why not show-off. Married and wife is also a thong/g-string wearer who encourages me to do the same.
I'm 52, and in better shape now than I ever was. But, with the exception of wearing thongs at home and leaving the shades open, I will not wear them outdoors. Maybe your in a foreign country where they are looked upon as normal. Here at the pool I go to, they would not be considered normal. They would be frowned upon, and I would be looked at as a freak. :frown1: