When my DD was born I gave her a dummy as I thumb sucked until i was 14 and thought that weaning of a dummy would be easier than a thumb. My DD had other ideas and at 3 months spat out the dummy and found her thumb. Now at 3.5 she has found her cousins dummy and wants to suck it all the time. At first I let her as o thought she was just playing g at being a baby, but 3 days later she wants it all the time. Should I be worried? Should I go with it and then wean her off like I would have done if she'd always had it? 