Nowadays, non-native English-speaking teachers (NNESTs) do outnumber native English-speaking teachers (NESTs), but the latter are still the most preferred type of teachers by the majority of policymakers, schools, students, and parents.
In my opinion, students appreciate that their teachers have already traversed the way they are discovering. Closely related to this, these non-native teachers know the students' mother tongue, which helps them recognize errors and support them more efficiently. On the other hand, native teachers have a strong feeling of discovery when they approach the other culture, which strengthens a true interchange process, dynamizing the teaching-learning process in a significant way.