Is it necessary to apply film on the front windshield of a sedan?

[OGideon]

Applying film on the front windshield of a sedan is generally unnecessary unless the windshield has sustained certain damages or cracks, in which case applying film may indeed be necessary. If the windshield cracks, the car window film can act as an adhesive, holding the shattered glass together and reducing the severity of injuries to the driver. However, under normal circumstances, a windshield would not be driven with existing damages. Potential drawbacks of applying film include: it may obstruct the driver's vision, cause reflections on the car body that affect the visibility of vehicles behind, and increase the likelihood of rear-end collisions. If a metallic film is applied, it may also interfere with ETC and GPS signals and cause issues like high reflectivity.