Gordy, which part of the scripture talks about the rule being applied only to meetings, assemblies etc.?
It wasn't applied just to meetings etc. It was applied all the time. Female JW's were not supposed to wear pants, jeans etc at anytime.
I recall one sister who told us, when at home would wear pants to do the house work in. But if another JW called she would change into a skirt, or if she had to go out shopping.
A pioneer sister in winter would wear pants to keep warm, under a long skirt.
A couple of sisters tried wearing Culottes ( a form of baggy pants that looked like skirt if you didn't look closely) to meetings. But they got "counselled" on them.