Quoting Fuzzball's Mumster:" Cant do cold turkey with my son due to his health he is attached majourly his dum dum been everywhere ... [snip!] ... out and he loses it we have a major meltdown (which is the only time we do) hes been thru hell and his dummy been his confort"
Why do you feel like you have to stop it? If you can get it away through the day and only for naps, that shouldn't affect his language development.
My 4 year old still uses hers for bed and when she is sick. We took it away through the day at about 14 months (except naps, bed and car), it came out of the car around 2 (I think). My 2 year old never took a soother.
Best of luck.