[Terr_]

That may be the reason in other countries, but parent-poster talks about an intersection in California, and as far as I can tell US regulations require symmetric (unbiased) low-beams, and high-beams are usually symmetric everywhere.

> When installed on a motor vehicle, the headlamps (or parts thereof) that provide the lower beam must be of the same type and provide a symmetrical effective projected luminous lens area when illuminated.

[0] https://www.federalregister.gov/documents/2022/02/22/2022-02...