customise staff roles

Why is there no ability to customize permissions to users?

only 3 permissions also if I give the user low permissions he can delete the conversation 

Reply Oldest first
  • Oldest first
  • Newest first
  • Active threads
  • Popular
Like2 Follow
  • Status In review
  • 2 Likes
  • 3 mths agoLast active
  • 15Views
  • 1 Following