Older people, especially those with money, will certainly pay for music either by buying the music or paying for subscription services or both, and I don't see that changing but kids, the ones who I know at least, won't pay for music they can get for free, and they all know how to get it for free. Streaming services try to bring that behavior into the light and at least try to monetize it, but eliminating free streaming is only going to drive them back to the shadows. I really think that efforts to stop people from listening to music for free will be about as effective as prohibition or the war on drugs.