Could the Hundred Years War have ended in a swift British victory?

The feudal army could win battles, but it could not keep the hostile population, especially the urban population, under control. This requires a massive standing army, which did not exist under feudalism.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.