In the UK we make purées for our babies when they have no teeth and cannot chew. On the other hand, it seems that it is a culinary art form in France. It must be lump free and just hold its shape.  To be offered 3 different vegetable purées at one meal is not unusual. I wonder if French people think we are not up to scratch in the kitchen when they eat quite solid mashed potato in the British Isles?