Start up Idea : A website which lets highskilled people conduct a Q and A session on popular Courses on websites like udemy,skill share etc. ?

Bhai this iz given for free my course creator. Why would people buy

A 1 hour session for 20 people for 1 week at 1 thousand gives 20 thousand extra money per week.

Example : A Q and A session on Angela yu web dev boot camp. The session can be up to 2 hours and around 20 people. For a charge of course.