Mackenzie is older (2.5 years) and we just got rid of her dummy last week. We went away on holidays for a week and on the plane she asked for her dummy (she only had it when she went to sleep) and we said we forgot them. She asked for them again that night and for the next week but each time we just said they were home in Melbourne and we would get them when we got home. She was OK with that. When we got home I removed the dummies (they lived on top of the fridge) and replaced it with a present I had in the cupboard. When she woke up in the morning without the dummy we went to the fridge and made a big deal out of the present being from the dummy fairy who took her dummies while we were away to give to other little people. She was great and tonight she went to bed and didn't ask for it. It has unsettled her - it takes a lot longer for her to go to sleep but I think we will be OK. When she was younger she did have the dummy more often, however I did then take it off her when she was up out of bed and made a point of only having it at bed time. In the end she did ask for it as soon as I said 'it's time for bed'. As others have said how many 5 year olds do you see with dummies.