Not everyone needs to run a Bitcoin Node.
You are able to share your Node with friends and family. A family, town, or village might run their own node, if they trust the local node operators over a random node they connect with.
Bitcoin Core - Bitcoin.org
“Bitcoin Core is a community-driven free software project, released under the MIT license.”
“FULMO supports the RaspiBlitz project, a secure and reliable Lightning routing node. With the help of a great community of contributors, it offers a suite of unique applications for any professional.”
Lightning in a Box
“Your hardware. Your node. Your keys. Your Bitcoin. It’s easier than you think to run your own Bitcoin & Lightning node.”
“By running a Bitcoin Node, you can independently confirm transactions, and will contribute to the network's security.”
“Run your personal server with a Bitcoin and Lightning node in your home, self-host open source apps like Nextcloud and Matrix to break away from big tech, and take full control of your data. For free.”