if they added that function they would have to give a HUGE bonus to tomes. the new people would always get stuck with new people and their dungeons would most likely fail. if you use duty finder.. you trade your in game experience for people who are progressed and geared and knowledgeable of the fights.. if you don't want this happening and just want to run it slow and easy.. you should prolly make a party finder cuz the vast majority are grinding.. I know it sounds harsh... but the person entering duty finder holding others up.. is just as rude as the person going in without them.