It’s not just plane rides, it’s private jets. If you’re going to Venice, you’re going to have to fly. But every person doesn’t have to take their own individual plane

If you can superimpose a blocker over real-world ads, you can superimpose ads onto plain walls too

Depends on your use case. If you’re just looking to expose services and are ok having them publicly accessible, there’s Cloudflare Tunnel, or you can run WireGuard on a cheap VPS