N.H.
I say give it back also. This is obviously just not the right time for your son to have this "security blanket" taken away. Especially with a new addition in the family (even 15 months into my second daughter's addition to our family, my 4-year-old daughter still feels some insecurity at not being the center of the family universe anymore!) I agree that insecurities in the early years can carry over later in life and if a paci makes your son feel better right now, so be it. He'll grow out of it in his own time. Don't feel pressure to force him to give something up just because other people tell you he's too old for it. Only you know what's best for your children. Good luck!