Kitsambler said:
It's not a requirement in France, however
Untrue, even though from a certain point of view only the
sellos over the final 100 KM from Sarria or thereabouts are a "
requirement".
They are an absolute necessity if you're walking anywhere far away from the principal routes to be be able to justify yourself as a pilgrim (unless your finances are such that this is no big deal) ; and as the French Camino gets more and more populated they're starting to become a necessity to obtain assistance in some places where some have started to abuse the system, as they do in Spain.
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Bottom line : There is NO reason NOT to collect
sellos on the French routes.
Do it. If you're worried about not enough space on your
credencial, just buy 2 or 3 instead of just 1, and use some glue to stick them together to make a single, larger
credencial.