Neither of my children had a dummy as a baby. I don't have a problem with them, just neither child wanted one. They Are Now 6 and almost 2.8.
A friend accidentally left one of her baby's dummies here when she visited. My DD initially became very attached to it. Wanting it whenever I read to her, had quiet cuddles with her or watches cbeebs. I would always take it from her, to much upset, but didn't throw it away because my elder DD begged me to keep it for her dolls! With time my younger DD lost interest in the dummy.
Anyway, DD has been waking earlier and earlier in recent weeks. We have gone from 7-7 to 7-5. Yesterday morning, as I stumbled to her at 5, I stepped on the dummy. Without giving it any thought, I picked it up, walked into her, passed her the dummy and walked out. She slept until 7.40. I then took the dummy and she didn't have it again all day. This morning she woke at 5, and I repeated the above. Immediate silence and no noise since.
Would it be utterly daft of me to allow my 2.8 to have a dummy at night time, when she went through baby hood and beyond without one? What's the downsides, because atm, it just seems fantastic!