> Yes, junior members will often have more grunt work, but they should also be given many interesting tasks to help them grow.

This and all the talk of status is a bit worrying

Junior devs are challenged by and have room to grow from tasks that would be routine and boring for a much more senior dev. The junior member might be completely out of their depth taking on a task that the senior dev would be challenged and grow from. This may influence who should do what tasks, although collaborating on a task is often an option