My lovely cousin's wife has a 12 day old gorgeous daughter who likes to be on her mummy's breast the whole day, mainly for comfort, sometimes for nourishment. She was asking me about when I gave DD2 a dummy and I really can't remember. I know I held off as I didn't want to use one (DD1 never had one or sucked her thumb). People suggested I tried one for the same reasons (she was on my breast all day and night) and it was amazing, I actually got to put her down and do something else!
So, what's the youngest you gave a dummy to a child?