“No they are not required to drink; please see the Gemera in Kesuvos and the Rabbeneu Ephraim in Megillah.”
If you say like rabbeinu efraim then men are also exempt from “ad delo yada”!!!
i saw in the poskim that they should drink a “revias” of wine.
a serious lakewood bachur who would even consider marrying someone who wears pants, even if he originated from that world, isnt serious. a women wearing pants is totally unacceptable for a ben torah.