Welcome Reedmont! I am also fairly new to the forum and will do my first camino May 2016. When I first started considering this journey I was certain I would go the route of using a travel guide to book my accommodations...but the more I gathered information from the fine people on this site by asking questions such as you have done and reading the many experiences that others had to offer I changed my mind - except for booking my first three nights (St. Jean, Orrison...) I quickly realized that having my accommodations booked all the way through was too expensive and the idea of being strapped to an itinerary did not sound appealing. Also the idea of staying in albergues seemed a bit of a stretch for me, but from what I have read those are some of the best experiences one should not miss!
I feel confident now that I will be just fine. Others have assured me if I take days for rest, injury, sickness, or just wanting to look around at a certain spot I can always take a taxi or bus for a bit so that I can meet my goal of reaching Santiago by a certain date so that I can catch my flight back. Also I can opt to stay in private accommodations periodically and that it is easy enough to call ahead and make a reservation the day before.
Almost every bit of information I have in my head concerning this journey (as I had never even heard of the camino prior to last fall) has come from the people on this site. What kind of clothes are best for the camino (I knew nothing of merino wool before getting on this forum), backpack info, what to take and what is not necessary, hiking footwear, what kind of food do they have along the way, how should I train for the camino, what is it like crossing the Pyrenees, how to guard against a possible bedbug problem, why is it important to keep pack weight down, how to get a sim card in Spain for my iphone, what kind of documentation do I need for traveling to Spain, beneficial apps for my phone, different options for guide books, what kind of plug adapter to get, different options for carrying water, why one might need a headlamp, and even some suggestions on albergue etiquette!!
I have had such a great time learning all these news thing and preparing for my journey.
How wonderful you are getting to have this experience with your son! Excellent. Buen Camino!