Fortnite Coaching classes?

A lot of growing gamers have arised in Fortnite like Ninja, Muselk, TSM Myth, etc. Now some pro gamers have started a micro-industry offering their services as in-game.
Charging up to £20 an hour they deliver coaching remotely and accompany their clients in the game, keeping them safe from attack and teaching them how to play.

Nowadays gamers have found many ways to earn money from. At first I thought it was only with Youtube Live Gaming, Twitch, etc.
Really Intresting.