Actually plenty of cars sold in the USA with factory HIDs don't have any kind of self-leveling. From what I have seen of cars in Europe, at least, it appears most countries there (and Scandinavia, UK, etc.) must require both them and washers.
Oddly enough, if one ordered HIDs on US Mercedes-Benz SLs back in the 1990s, M-B deleted the washer/wiper setup.