My answer for this question is published in the British Council Voices Blog.
“I suppose most teachers’ first reaction towards working with Jane Austen in the English language classroom is not very different from the reactions we have when people mention Shakespeare or Dickens, or literature in general. There are concerns that the language is outdated and, therefore, too difficult for students to understand. Some people also argue that society has changed a lot since these works were written, and students cannot engage with the themes and characters any longer.”
Read more here