Sounds about right for a seven month old. Some babies are interested in food early on, and others not so much. I don't think it hurts to offer food on a spoon once in a while, or with your fingers. All around the world mothers are finger feeding their babies food, and sometimes chewing it up a little for them first. Eventually the babies all sit at the table and eat, whether with fingers, or forks, or chopsticks. They just copy what we do.