What are Developer Options on Android and when to use them?

Developer Options are advanced settings built into Android for software developers and tech support. They're hidden by default, but safe to turn on. You only need them if someone tells you to for troubleshooting or if you're writing software.

Developer Options unlock powerful settings that tech support and developers use for testing and fixing problems. They don't break anything just by being on — your phone will run normally. The danger is in changing individual settings inside them without knowing what they do. They're hidden to keep non-technical people from getting confused, not because they're dangerous.