My dd is nearly 2 and a half and nas never grown out of putting things in her mouth. The health visitor commented on it at her 18 month check and said she would probably grow out of it soon but she hasn't. Her other pals ofthe same age don't do it - I just don't understand why she does it as she eats well so it can't be hunger.Our 'what to expect' book says we should be concerned and we are. Does anyone have any suggestions or comments ? all ideas gratefully received xxx.