My DS is 16 months and wouldn't take a dummy when he was a baby, he went to bed with nothing and self settled himself.
Over the last few months he's taken it upon himself to have a little soft muslin blanket that he calls his 'Effer' we think because it has elephants on :)
So he loves his Effer and when he's tired or feeling like he needs it he will walk around saying 'Effer' and gets upset until he's got it and then he cuddles it and it comforts him.
I have no problem with it but just wondered if it's common for toddlers to have a cuddly toy or blankie that they carry round? We've not encouraged it at all but it's just something he's taken to himself ☺️