You know your kid best. You also know if it is actually worth it to you to pay a lot of money for a nice dinner when the experience is changed by having to manage an active little one. However, I will say that all Disney restaurants are very accommodating to small children. Especially if you make early reservations, I think you will find that many of the tables have babies and small children. On our first trip with my 2 year old and 3 month old, I was worried about signature dining. I didn't want to disturb others. We gave it a try anyway because it's something we really enjoy. Just about every table at Citricos at 5:30 had similar aged children. I was put at ease, and my kids did fine! Totally your call, of course, but you may find that it works out ok for your 2.5 yr old!