-You can share with your child.
-You will not be charged any child credits if you do not order a meal for your child.
-You can pay out of pocket for your child a meal (probably the best idea) and not be charged any child meal credits.
-If you order a meal for your child using the dining plan, it will cost 2 credits.
-You did not mention whether you're on the standard
DDP, or the DxDDP. If you're on the standard DDP, and you choose to not order a meal for your child, you will have two extra child TS meal credits that you'll have to figure out how to use them.