Your customer is not the one actually making the cards, rather their boss. Making the cards only costs the employees time, something they don't mind wasting for the most part. For the manager or owner it directly costs money, time wasted on making cards costs the employer money in the form of wages. They are also the one with the purchasing power in an organization like a school.
Creating a more efficient organization is generally speaking not part of the scope of someone making ID cards, but it certainly is for their employers or managers.