My 18 month old DD has no problem getting the spoon in her mouth if I put the food on it for her. But when she tries to do it herself, she gets frustrated if she's really hungry and ends up sticking her hand in the bowl and coming out with a fistful of food. I tend to feed her in the beginnign and then when, the starvation has tapered I give her the spoon, but htere is no guarantee she'll use it. Should I be pushing her to use the spoon/fork at this point?