It did also make me a bit worried about the expected level of driver education...
American signs very frequently combine both styles - for instance, you see the above words next to a sign with arrows for whatever lanes, wordlessly illustrating the turn types permitted.
If someone is a new driver, who hasn't seen the symbolic signs enough, the word signs are a good fallback. The goal is to maximize accessibility.
The obvious benefit of the European style is that you don't need to speak the language in order to understand the signs, something that is clearly less important given the relative homogeneity of language in the USA.
But at least to me, the European road signs are also more quick to read. For example, the "only right turns" and "speed limit 60" are exactly the same shape and color in the USA, while in Europe there is more of a logical system (which also means you don't "memorize a bunch of symbols", you learn the "language" of the signs), such as blue disc means "mandatory", red circle means "prohibited", red triangle means "warning", etc.
The US doesn't have nearly that issue, since we have tons of symbolic signs, and few languages, which share a ton of close cognates anyway. For instance, most Mexicans I've heard will use the verb "parquear" or "aparcar" to mean "to park" rather than "estacionar" - so as you might expect, they have zero trouble decoding a sign saying "NO PARKING 9AM - 6PM" which is one of the most complicated text-only signs you usually see.
https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh...
> If someone is a new driver, who hasn't seen the symbolic signs enough, the word signs are a good fallback. The goal is to maximize accessibility.
That's the thing I'm concerned about! In Europe you're not allowed onto the road unless you have already proven that you have memorised all the symbols and can identify them on demand. You don't need to maximise accessibility because the required level of education is higher.
Not just driver, but of the general population. A few decades ago, the general reading level was at the 6th grade (thanks to the policies of Ronald Regan) and republicans think that is too high and have been working intensely to lower it. Won't be surprised if it's dropped given the "golden" opportunity of covid. I know it's only been a few years (centuries for most Americans) since Betsy DeVos was secretary of education. Remember that era?