costs producing and publishing it.
That is pretty much zero no days though. The only real cost is time.
I mean yes, they will need a computer. They might need lighting if they are on camera, but from then on, zilch. You could do it with a cell phone for video.
I have a kid that published their music with videos, and there is no cost at all, using all the free tools available.





6? Go play and live doing fun things.
Computers/video games/tablets/tv that all can wait.