Hemlines used to go up or down, according to whether the economy was in boom (short) or bust (long). Even HM the Queen wore a skirt above the knees in the booming 1960s.
Most women happily went along with whatever was decreed to be the current fashion. Today, in line with other cultural confusions, there are no rules. Women wear the skirt lengths they feel like wearing.
That’s all very well. But they should bear in mind the golden ratio –
