Ab welchem Alter darf man in Rheinland-Pfalz bei Kommunalwahlen wählen?

Why this is the correct answer

Rhineland-Palatinate requires voters to be at least 18 years old to participate in local elections. This contrasts with neighbouring North Rhine-Westphalia, which allows 16-year-olds to vote locally. In Rhineland-Palatinate, the standard voting age of 18 applies at both the state and municipal level.