We had to also dresss formally. Mothers had to wear long gowns as well. Personally I think it is an unreasonable request. Even worse when it creats a hardship. But having only sons, I had to go along. This paticular DIL was raised as a "princess" if you get the drift. I had to shell out 175.00 for my gown. Now it sits! I could shorten it but I don't go anyplace to wear something like that now. Besides I use a cane and it makes it look cheap.
Just my personal reply.
Dawn