Well lets see   

1 I have been a TV actor and extra - getting work was hard - waiting for money was harder
80 plus percent of actors are unemployed at any one time Breaking in to the business is just as hard for any newcomer as any where else

I am in touch with gigging singer guitarists The guy who does covers is getting paid work. The clever singer guitarist who is doing his own material is getting gigs but not paid

There is not a conspiracy to stop new young artists developing - its just that the punters prefer established names Sir Bruce is still doing TV at 803 plus. Why because the punters ie the BBC book him