hi Marty,
is the festival scene not strong in the US?
i know that in the UK this is how many bands gain exposure and a following. there is a broad enough spectrum of music being played and, as a scene, it is much less conservative than radio, more enthusiastic for new music.
and even there the advent of internet radio has massively increased the variety of music that can be heard...all those thousands of radio stations requiring 24 hour output, the maths alone provides evidence that you can find a niche to begin your climb. when i grew up it was the same few songs, over and over again, combined with wretched radio 'personalities'. ugh. so glad to be rid of all of that conformity and just hear the music i want, without regular interruptions for adverts and someone else's view of what's news
then you have the rise of compilations....this means that artists can earn money from individual tracks to pay for more studio time or equipment. within electronic dance music (edm) this is an established business model, perhaps your nephew could pursue this?
personally i also believe there's a generational issue; the creative baton has been handed on and leaves the baby boomer generation as the establishment, with once-rebellious rock music now the soundtrack to power and conservatism. the bright young things of today work in a different style, to a different rhythm