sjs –
ahum ahum check your sources again. ALL poskim agree the knee is part of the shok and MUST be covered at ALL times, even less then a tefach is erva and must be covered for a husband to say a bracha. The questionable part is in the rishonim if the ENTIRE leg is considered shok and therefore must be covered. Yes everyone! some hold (most don’t paskin as such) that the entire leg is shok and thereby must be covered. So yes it is very frightening that now it’s very in to wear very short skirts.