system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why are car windows & windshields glass and not a kind of plastic?
gpt
Windshields are laminated glass to prevent them from shattering in your face.  The other windows are treated so they explode into little bits instead of dangerous shards.

We don’t just use plastic because it discolors from UV exposure over time and can’t be broken away during an emergency.

It also has an annoying tendency to creep over time, deforming under its own weight.