I've weaned my 13 month old DD to only two nursing sessions (night and morning) and give her whole milk during the day. She drinks whole milk, but not very much. I don't mind that she's not drinking much, but I'm not sure how much she needs to drink.
Everything I've read says 16-24 oz, I have no idea how much she's getting from the two nursing sessions. I offer whole milk two times a day in a sippy cup. She usually drinks about 2 ozs, but every now and then 3-4.