So Melody was nearly 18 months old when she took her last bottle.  I could never get her to take formula from a sippy cup prior to 12 months old.  She would take water from a cup without a fight.  When we transferred her to milk, we did so via a bottle to make the transition from formula to milk easier.  Well that kind of bit us in the butt.  She transitioned easy, but the bottle has stuck.  She would not take milk from anything but a bottle.  Some meals I would try the milk in a cup, but she would refuse.