I don't think there's much supplemental income in there
Unless your name is Jordan Palmer or Ryan Clark.. baldinger... unless you have an NFL name next to you
Most people you see on Twitter and YouTube are amateur scouts and coaches...
Basically doing it for the Love of the game
The cover one guys can do it, cuz they aren't full-time regional scouts or varsity or College coaches ... They made it a job.. and still can't get credentials
If You're the head coach at canisius you don't have time for a YouTube channel.. you're preparing a game plan for a top team in Ohio.. going to practice and watching film... Having meetings with other coaches
If you have the patience to start slow... And put out good content for fun... For three or four years... Build a subscribers list and a reputation... There may be long-term benefits , including income stream
But it's certainly a long term project that YouTubers turn into a full-time gig
Because part time isn't enough usually