In reality, bicycles are often trapped between fast-moving traffic and parked cars for the majority of their travel. At the end of the day, the goal here is to

In reality, bicycles are often trapped between fast-moving traffic and parked cars for the majority of their travel. At the end of the day, the goal here is to save lives, regardless of who would be at fault. Although, from another user’s comment, it sounds like the person opening the car door would be at least partially responsible, and that was already the case: > It is already an offence to open a car door, or cause or permit it to be opened, so as to cause injury, punishable by a maximum fine of £1,000. Furthermore, getting out of a car can be dangerous. This just seems like a sensible habit. There are no disadvantages.