There's a pretty big range on this, it seems to me. From the time Lilah was 14 months old, she refused to let me feed her and would grab the sppon out of my hand. She was pretty messy, but she did it! She is still pretty messy with messy foods like yogurt, and often uses her hands even now. I joked to DH that the picture of her eating cake at her 2nd birthday is not going to look much different from the first birthday picture-- she's still going to be eating with her hands and have frosting in her hair! On the other hand, I have a friend whose son never even attempted to feed himself with a spoon until his parents encouraged him to do so at 20 months-- he would even let his parents put finger food in his mouth if they were willing to do so. They encouraged him by just leaving the spoon for him, putting it in his hands, filling it-- and he quickly go tit and was eating like a pro. I think I've read that if by 20 months your toddler isn't yet attempting to feed himself, you should more strongly encourage him/her to do so. I have been giving Lilah and extra spoon almost since we started solids-- she'd grab the spoon even then. That could be why she was so adamant about self-feeding so early on. But it could also be that she would have tried to take over early anyway.