Oddly, I could never understand the appeal of dolls when I was younger. "But what do you do with them?" I asked a otaku shopkeeper talking about a particular figurine I liked. He gave me a funny look my autistic self couldn't fathom and said "Well, you just enjoy them."
Now that I'm trying to create real robowaifus, I understand both dolls and waifuism much better today. I guess I had to start taking a hand at it myself before it clicked for me tbh.