Cars have two kinds of transmissions; manual and automatic. Manual cars have a clutch which the driver needs and always uses when shifting the gear. A manual transmission car can never shift gears ...
Modern vehicles with automatic transmissions typically have a 'shift lock' feature to prevent unintentionally moving the gearshift lever from park (P) to reverse (R). The shift lock is a small button ...
If you end up stuck in a remote area with a dead battery on your car and need to push or tow that vehicle, it will be a 'no-can-do' situation. Unless you know how to switch the transmission to Neutral ...