For one the difference in the barriers for entry - the lack of any kind of selectivity - makes the environment different to TV 30 years ago.
Well you know what happens when barriers for entry become non-existent.
There might be some good YT creators but there's also a vast, vast amount of inane dross.
If a child saw that a person could be successful as a YT celeb reading nursery rhymes whilst dressed as a bacon sandwich, and comes to the realisation that
anything can be monetised on YT... is that a good thing, necessarily?
I'd rather they became an engineer and built bridges