You don't have to sit in your own filthy bath water. You can accept the present and embrace the future. You can want the change. You can allow your tastes to continue to grow beyond your coming of age as the world changes around you instead stagnating and dying. You can be as relevant to the future as you allow yourself to be.
You can and should listen to music from all eras. And yes there are children who are being born now who will become just as curmudgeonly in their nostalgia as the elders. I'm just saying it doesn't have to happen to you.
And as for tubes. They'll be around for a while still. They'll probably even see an isolated sort of renaissance when all of the people who obsess over them have died and their prices plummet because you can't give them away. But then they will become relics and the few remaining will be too expensive for people to afford.
They have their own culture and their own music that is much more important to them than the music of previous generations. They have their own nostalgia and they will cling to their own irrelevancies.
Are you guys dense? Do you care as much about your grandpa's music as you do for the music of your youth? What's wrong with you? I'm not telling you anything you shouldn't already know. This has been happening since people have existed. It's obvious. You're not immune to the passage of time. You will die and everything you care for will also pass from existence. That's how it works.
Your generation is just as vapid and stupid as every other generation has ever been. You're not special. You're just a regular human like everybody else. And if you think otherwise it is because you are in a state of arrested development. A man child. You cannot be an adult and also be unaware of your own insignificance, of your own impermanence, and the flaws in your own culture.
What are you, twelve?
Have a nice evening....