system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why are radio commercials and shows allowed to make car horn and ambulance sounds?

This must have caused an accident at some point.
gpt
Because there is no law, rule, or regulation that forbids it. It's pretty much as simple as that. While it may or may not have caused an accident, those incidents are not widespread enough to put pressure on regulatory agencies to ban those sounds.