And maybe the government will find a low cost way to provide universal free or very low cost wi-fi access to all citizens in their homes, and provide basic computers to those who cannot afford them.
Many old people have no idea how to use a computer, are too old to learn, and sometimes even senile. But who cares about them, they're dying off anyways. Unfortunately they will be replaced by younger people who are constantly aging, many of whom will also eventually develop dementia.
As far as magazine subscriptions, they will sooner or later be on-line only. So what if you hate reading lengthy articles on a small computer screen, which you may not have with you if you are dining alone in a restaurant and enjoy reading magazines during your lunch or dinner. I enjoy my weekly New Yorker and monthly Record Collector magazine subscriptions. Record Collector comes to me via snail mail from England. I wonder what that would cost if they couldn't use Canada Post for the last part of the journey?
Maybe in your particular circumstances you don't miss mail service at all, but many people do.
Yes, junk mail is a mild annoyance, kills trees, and is usually thrown in the "blue box". However, for many companies it's a cost efficient form of advertising that, assuming they analyze the cost/benefit to them, is deemed profitable, and the postal service is paid to distribute it.
By the way, the U.S Postal Service lost $1.8 billion in 2024, a decrease of .4 billion from 2023 due to efficiency improvements. Do you think they are going to shut down any time soon? I believe they consider it an essential service, as do most developed countries in the world.