Tha Camino with a child
I walked 405 kilometres of the Camino in 19 days in March-April 2005 with my husband and my (then) 8 1/2-year-old - Carrion de los Condes to Santiago. On the whole, it was a wonderful experience and we're planning to cover the first half next year - this Easter, I'm afraid it's going to be Machu Picchu instead...
Best advice: The lightest luggage possible, walk slowly, especially near the start, and take long, solid lunch breaks. Buy light shoes, one size too big, double socks (nylons next to the skin) to avoid blisters. Bring a pack of cards and learn some games in advance. And TALK the whole time, storytelling, singing together, explaining things. A child with a busy mind doesn't get tired, that seems to be mainly caused by boredom, I think...
I would NOT bring the Chariot, unless you want it for your luggage - your kid will have much more fun walking.
Also, expect to be the last people entering the refugio, and budget for hotel rooms for the times you're too late to get a bed.
Have fun - and contact me if you want to ask our son about the trip or see a few pictures!
Heidi