Pang and the baby

Our daughter came home from hospital in Chiang Mai three weeks ago. Pang, our Persian, was very confused at first. He was the only baby in the house for 5 years. Now he sits outside the nursery door and does not go inside. My wife says he is protecting her. I think he is just too round to climb the stairs lol. We give him extra treats so he knows babies are good. He still sleeps on the baby blanket though, and we don't move him.