What is the advantage of specifying WITH GRANT OPTION in the GRANT command?

Grant option gives the user permissions to grant the privileges to other users.
In an example, we can say, "test1" and "test2" are the users of the database.

conn test1/********
user test1 connected....


Grant select on table_name to test2 with grant option;
Grant succeeded...

Table owned by test1 has been granted privileges to test1 with grant option...

Now the user test2 can grant the same select on privilege to the table owned by test1 to others.

GRANT OPTION

assume that table 'emp' is created by user scott.
by using grant command he can grant privileges to other users.
If he want to provide a privileges to grant the privileges to other users
he has to grant a privileges with grant option.

giving privilege to the user