system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 why do credit cards have an expiration date?

I get needing expiration dates back when they first came out, but it seems sort of antiquated in today's world.
gpt
One reason is to replace the card on a regular basis because they do get damaged over time. Also makes you update your  address so they can find you.

Another reason is fraud related so that if someone compromises some database of card info from 5 years ago that the info is less useful since even if the card number changes the CVV and expiration changes.