My LO had his dummy for sleep but last September we gave them all to the “dummy fairy” to give to small babies and the fairy left him a toy the next morning to say thank you. He screamed the place down at bedtime for maybe 3 or 4 nights but we had to just let him cry and I cuddled him to sleep but that was all and has never mentioned it since.
Cut the end of the dummy, every other day cut it a bit more. One cut helped my LOs to get rid of it.