On our first cruise, on the Dream in November, we were a family of 3 (me, DH and our son who was almost 2). We were seated with an older couple traveling with their 3 1/3 year old granddaughter. They were very nice, and my son was fascinated with their granddaughter and she enjoyed being the "big girl" at the table. Her grandparents were veteran cruisers and told us about many fantastic ports they've seen. We really enjoyed talking to them.
On our most recent cruise, the Fantasy last week, we were intially seated at an 8-top table, and would have been seated with a family of 5. About ten minutes into dinner, when that family had still not arrived, the restaurant manger approached us and offered us a 4-top table which we accepted and we were immediately moved. That family was consistently 20-30 minutes late to dinner every night, so I'm glad we were moved.