Why Wrapping DBSet Repository inside Class is Good

Why Wrapping DBSet inside the User Defined Class is a Good idea?

DBSet is a Repository that is used to query and command the underlying database tables.

We need this object in our code to manipulate data inside tables.

Using this Class direcly inside the Conroller make UI dependent of EF.

In order push it outside the UI, we need to wrap DBSet along with DBContext in User Defined class and use that user defined class in the Conroller.

Make code SOC, Testable, Reusable