Hi Jonny
Funny story! 🙂 Whether or not anyone else decides to wear knickers really should depend on whether your ‘bits’ become obvious in the poses. Many a yogi(ni) has worn something that looks as if it covers everything only to discover that when they bend over, or when it gets wet, or in all manner of positions, all or a hint of, or a shadow of something is revealed. Or, as often happens, one sees right through previously unstretched opaque material.
I am a big believer in modesty in the yoga room. It is not a matter of ‘well, if there’s anything to see, you shouldn’t be looking’. For me it’s always ‘wear anything where there is nothing to see in all circumstances’.
If grandma size undies does the trick, then go with that. 😉
Namaste
Gabrielle 🙂