Ab welchem Alter darf man in Nordrhein-Westfalen bei Kommunalwahlen wählen?

Why this is the correct answer

North Rhine-Westphalia lowered the voting age for municipal elections to 16 in 1999, making it one of the first German states to do so. Young people aged 16 and 17 in NRW can therefore participate in local democratic decisions. The voting age for federal elections in Germany remains 18.