[lexicality]

I didn't say they were stupid, I said I was concerned about their level of education

> 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.