A pantsuit for a woman? hah! When I was growing up in Mississippi, a pantsuit was not appropriate at a funeral. By the time I was 20, there were some females who might have worn a pantsuit to a funeral, but hoity-toity folks would have looked down their noses at them and said they were dressed inappropriately.
Personally, I try to dress in a way to blend in with the crowd.
I wonder how the common folk dressed when they went to see Shakespeare back in the day.
I still wear skirt suits on interviews and in business-formal situations. Pantsuits are just one notch below correct business-formal.