mdd- I know about “shoik”- this was not my question. the knee clearly is not “shoik”,because if “shoik’ is the part from the knee to the hip, itb still does not include the knee , and if “shoik” is the lower leg , then the whole lower log should be covered, till the ankle, and, obviously, we don’t pasken like that,otherwise the ankle should be covered too!
It is also irrelevasnt whether some people have their senses provoked by something- it is the majority we are following and I still don’t see the knee as the most provoking part of the body. Lastly, if a ‘sheitel’ covering the hair takes it out of ‘sa-ar beisha ervah’, why isn’t covdering the legs (stockings) do the same for legs?