That's not true. A lot of us are still running the same hobby bullshit out of the same little closet on the same rickety consumer hardware that we did in the 90s. I know I've been hosting services online for over a decade, and there's never been a profit motive for me. It's fun, and in the beginning that was enough.
It's more than that now. Every single personal site on the internet is a fly in big techs beer. Every hobby service out there is endless ad impressions denied. A lot of young people are looking for something they can do to take a stand against the monolithic capitalism that constantly put itself between us and what we're trying to do, and taking back technology is the answer. META can't fuck with your local political races if they're broke. Close your account and host your own site instead. Every hobby site is an act of defiance in the face of the massive corporations insisting they're the only option.
Every time a teenagers personal webserver answers it's first public request the whole world leans just a tiny bit back towards what we were all told the internet was in the 90s. Make a difference. Spin up a website. Host a service.... Take back control.
The old internet is still there- happily routing around failures, with or without you.