Sometimes it makes sense to pay OOP for kid's meals at 2 TS locations. However, since LC doesn't have a kid's meal that inc. all items a kid's meal could end up costing quite a bit (like at Tutto).
For example, if your child orders Salmon ($11) and the Chocolate Moose ($8) the meal could run $22 (with drink) So that wouldn't be a bad use of 2TS. However, if your child just orders the elbow pasta and a sundae, it would be about $17 (with drink). I would make my decision to pay OOP based on what my child orders.
My DM, DD, and myself have paid OOP for 2 TS kid's meals and also shared a few adult meals and that allowed us to have a few more meals (or 2TS).