I dont't know if mine is considered a full breakfast by your definition.
My 18 month old son wakes up early in the morning, probably got to do with him sleeping early at night too. He'll latch on for a milk feed, then when I leave the house, he's usually eating his 1 kiddie bowl of cereal with sliced fruit (strawberries for the moment!) or a slice of bread. At 8+am when hubs n elder gal are eating their brekkie, he will snack from their dishes. Hubs usually take oatmeal with milk, my elder kid eats bread with spread or cereals with a glass of milk or milo. When he goes over to my mom's place at 9am, he shares my mom's breakfast of milo & biscuits or bread.