I too was a little worried when my grand babies were born. When they first came home and came to visit I let Phoebe do all the sniffing she wanted to. That seemed to take away some of the curiosity. The main reason I chose to do this was because I was gonna be keeping them while their mommy's worked and wanted them to get use to each other and help her with JEALOUSY cause she is a mama's baby , all dogs are different , but Phoebe is really good with them and takes naps with them too lol! My grandson is now 2 and grand daughter 1 1/2 and they all love each other. This is just my experience. Congrats on the new grand baby