Just out of curiosity would it be acceptable to wear a towel over your lap for modesty’s sake? Say if your a foreigner in Japan would this be ok to do? And if it’s not acceptable why?
Answer by TJ
Definitely not in the bath tub even if you are a foreigner.
The reason is, well, it’s just you are not supposed to soak anything but your own body in the hot water. Guess we think you use a towel to wash/wipe your body.
Of course it is ok to wrap around your waist to walk around in the bathing area.