I change clothes with my mother in one room is it a sin and we are naked in private no attachment no sexual desire nothing no we are not swapping each other's clothes we are wearing our own just e are changing in a room wearing our own clothes i am not we

Strict Jain answer: Yes — it is not considered proper.

In the strict Jain view, being naked together in one room while changing clothes is not recommended, even if:

• there is no sexual desire,
• there is no attachment,
• and both are female.

Why? Because Jain conduct emphasizes:

• modesty and restraint,
• avoiding situations that can disturb shamta and brahmacharya,
• and maintaining discipline in body and conduct.

So the strict answer is yes, it is to be avoided. If you want the safest Jain practice: change separately or with full covering.