Why don’t the cigarette lighters-12V power sockets in newer cars have constant power like they did in older cars?

In older cars, 12V cigarette lighter sockets had constant power, but newer cars switched to ignition-controlled sockets. This change prevents accidental battery drain from chargers, dash cams, or coolers left plugged in. It also protects sensitive modern electronics and ensures reliable starts. While some models still offer a mix of constant and switched outlets, most newer vehicles prioritize battery health and safety, making ignition-based 12V sockets the standard choice today.