A couple of mine were those ages (the others were younger) and they loved it. It got them out of bed because the atmosphere was nice, it was an unusual way to start the day, it was something different...they enjoyed coming to the kitchen with the warmth of candles and the scent of cinnamon in the porridge that was simmering on the stove.

Another thing they loved was instead of porridge (or some other hot cereal), they could smell fresh muffins (blueberry, or oatmeal, or bran muffins etc.) - and hot chocolate. Definitely worth getting out of bed when they know they have to do it anyway...!

Just thought I'd mention it in case it might work!