As in, a baby doll rather than a Barbie? I don't have daughters but was quite surprised to hear a colleague remark that she wouldn't be buying her DD a doll, although her DD had asked for one, because "she's six". I'm sure I still played with dolls at that age?
(Obviously no disrespect meant to colleague - and if she'd said something like "DD wants a baby doll but she's got four already and hardly plays with them", I wouldn't have batted an eyelid. But an age restriction seemed a bit odd.)