If you can fit a switch, there is no reason not to. But there are a lot of situations where a circuit would drive the pin, like disabling subsystems during sleep of an MCU or soft on-off with multiple switchon mechanisms.
If you can fit a switch, there is no reason not to. But there are a lot of situations where a circuit would drive the pin, like disabling subsystems during sleep of an MCU or soft on-off with multiple switchon mechanisms.