Moving off from the side of the road sounds really quite simple.
But when the correct procedure for doing so is not carried out correctly it can be fatal!
If you started the car, placed it into gear and just moved off the outcome could be catastrophic.
Was there a vehicle coming up from behind you?
Was there a vehicle coming towards you and the road was narrow causing them to be on your side of the road slightly?
Was there a pedestrian crossing the road in front of you?
Was there a cyclist, car, motorbike or any other vehicle trying to pass you?
Were there junctions on the opposite side of the road with vehicles emerging from them?
Were there driveways on either side of the road with vehicles pulling off them?
Theses are just a few examples of what could happen as you decide to move off from the side of the road.