I think we all hope our little ones never use a dummy/suck thumb/or have a doe doe toy/blankie.
Well as nature has it, all babies are different.
I took a Nuk with me to hospital but left it at the bottom of my bag. After an emergency C section, Jordyn being rushed to NICU for Meconium Aspiration Syndrome- The next day, with feeding tubes and oxygen tubes in nose and mouth, and him trying to suck on the cords (remember I could not BF/bottle at this stage) -the sister asked me how I felt about giving him a dummy..... Well I honestly at that stage did not see any problem. He has his dummy at sleep time, or if he isn't feeling well etc but I don't think he is dependent on it. I did think to myself this morning that I think he would go to sleep without it and am going to try that.
I think we juts have to use our discretion as with most things. And most of the leading brands are orthodontically approved- so I don't think there are major concerns when they are small.
I use the MAM dummies, he just took to them really well. I tried Avent and Nuk, even Tommee Tippee.
So if you are about to have a baby maybe have one on standby but there really isn't a need to force the issue.