Ha van internet, akkor mindenképpen. Amúgy is van rá lehetőség. Csak kevesebb ember tud hozzáférni.

If it is safe and has less cost it is worth changing for it.

It should be based on trust. If there are some rules, these are because of the students. And the students should know that the teacher wants their developments. This is more typical in formal education. Language teaching is a bit different. In here trust is more important. If rules are a little bit stricter to make the student persistent they can change teachers. If there is more trust students can believe in teachers and their goodwill.