Final answer:
The main reason to avoid parking next to a badly parked vehicle is to prevent potential car damage, which can be very expensive, particularly if the other driver does not have car insurance.
Step-by-step explanation:
The question asks, 'Why do you avoid parking in a space next to a badly parked vehicle?' The primary reason one might avoid parking next to a poorly parked vehicle is due to the increased risk of car damage. When a vehicle is not parked within the confines of its designated space, it can indicate that the driver may not exhibit care when returning to the car. Consequently, there is a higher likelihood that they might hit your vehicle upon leaving, resulting in damage which can be very expensive to repair.
Given that some drivers may not have car insurance to cover such incidents, this cost could fall on you, and even low-speed impacts can lead to costly repairs. Thus, for reasons related to avoiding potential costs and the hassle of dealing with car repairs, it is often prudent to choose another parking space.