Is there such a thing?
I feel like DD whines for and wants her pacifier more than I was anticipating at this age. I would say she has it in her mouth about 60% of waking time. Maybe even more.
She babbles and has many different facial expressions, so I don't necessarily know if it is impeding her development in any way.
Does anyone else's baby use the pacifier a lot during the day? Is there such a thing as too much pacifier time?