Mybat. I’m not sure I understand the implication of teaching that to them.
When I was in camp guys used to run around without shirts (usually just a pair of their on their backs). At first they were told “its not proper to go around dressed that way”. They counter argued “but its just guys”. finally it was explained that a yid doesnt run around without a shirt, no matter who is around. its not your classic “tznius” issue. It is an issue of what is proper. If girls should dress a certain way, it is not relevant what the effect is on males. if it appropriate to dress a certain way, it is not appropriate. Would it be proper for a BY girl to dress like lady gaga if only women were around?