If you're OK with it, then it's fine. I agree that you may eventually want to set some boundaries around it. It sounds like it's maybe reaching that point for you now - maybe it can come in the car, but it stays in the car seat. Maybe it has a special "seat" at the table where he can see it, but he doesn't actually hold it during meals. With my first, he was attached to the pacifier, and it was around 18 mos that I banished it to the bedroom (he could have it during naps and at night, and if he hurt himself or otherwise needed comfort, we would go get it, sit in the rocker until he felt better, and then put it back in the bed.) That's a little different, since I didn't want the pacifier to interfere with speech. We're just now setting the "only in bed" rule with my second's (2-1/2) blankie - which is mostly because it got really dirty and I got tired of washing it every two days. I also still have my blankie and bear from my childhood, and although I don't actually sleep with them anymore, I did until my husband and I moved in together. The blankie is actually helping your son to be independent of *you*, and that's a good thing. He is learning to soothe himself (with the help of a blankie), and that's a fantastic skill for him to have. Trust your gut, though, and if it's getting out of hand, set some boundaries. Good luck!