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Growing up, I learned that everyone has a first and a last name, and teachers are addressed Mr., Miss, or Mrs. [insert last name] and then when I got to college, for professors with doctorate degrees, they are addressed Dr. [insert last name].
Imagine a world where last names do not exist. It would make life more difficult. You would have to start to come with other creative ways to differentiate one Bob from another Bob. In a meeting, maybe one Bob is okay to call him B instead of Bob when addressing him instead of the other Bob.
What happens when there is too many Bobs and it is not possible to call one B and the other person Bob? I can think one example: medical records (or records in general). Medical records has too many Bobs. This make filing or sorting through the records more difficult.
How would the medical assistants decide which Bob goes first, second, third, etc in the filing system? Sure, the medical assistants can figure out based off other identifiers such as date of birth, phone number, and address. If they go by date of birth, what happens if there’s 2 Bobs with the same date of birth. Then, what? Phone number? There’s the cell or home phone number. Which one to go by? If it gets changed, then filing system would need to re-organized.
