In response to the above - it is very easy to assume (as a student) that everything can just happen at the click of a finger but unfortunately schools do not work that way, neither does timetabling. It's all about the finances (and the very important technical constraint of lines/blocking, ensuring that the timetable "works") if we go to the source of every consideration possible.
It'd be fantastic if every single english subject could run, as well as every other VCE/VET subject in existence. Unfortunately that's a fantasy idea and will never happen. Hence why services such as VSV/DECV exist (obviously not the only reason why they exist).
Definitely approaching with interested students who want to do the same subject is a great starting point, however so many things could ensure this isn't possible. For starters, if there isn't a qualified English Language or Lit teacher then that will involve recruiting another teacher which definitely won't happen if there isn't much interest. Secondly, it has to be financially beneficial to the school to run that particular subject which would involve students wanting to do that subject or it being a critical subject (unfortunately while you think Lit/Englang are critical, others do not. The same could be said for somebody who is STEM-inclined and think that Maths or Sci is important and that every single one of these should run).
I'm not trying to sound like a total dick here but as a teacher I do know the backend of what happens when decisions like these are made and it's not as easy as students think to make decisions like this happen. Unless it is a viable decision and one that can be accommodating to the needs of the school, it will not happen.