Not everywhere has a library though, and not everyone can afford a phone or pc, so what to do about those people who do need the mail?

I got my passport in the mail recently. All ID renewal needs costless delivery. So that's everyone that would use it.

Friday I got a parcel from China in my mailbox, because it was sent via normal mail, not UPS/FedEx.

My daughter was opening a bank account with a partner, they needed ID and a utility bill that had the mailing address printed on it. Paper address mailings are also used for citizenship and other matters as a way to help ensure you are in the country and picking up mail, rather than online fraud.

For CRA password account reset they paper mail you a code to stop online scams.

Court notice papers can legit be served by mail.

My strata ( by law ) has to mail certain documents like AGM info to residents, as electronic notification doesn't count for some specific things.

And so on.

As for your e savvy person. Great. My my old aunts don't have a cell phone or computer.

Also say you can't afford and ISP, you can't get electronic info at home, but mail comes free

Any government related communication like related to healthcare, driving licence, passport, etc. Insurances still send the physical contract by mail. Financial institutions also send by mail important documents. Most of these could be done electronically, but they are not.

The main issue is that our mail is polluted by all sorts of garbage publicity from different companies. Those should cost way way more to do. That way, we can reduce the need for evey mail delivery person to go to each door like they do now.

Looks like my address will be converted and having known both systems, I much prefer having a mail delivery person come to my home. It's a more personalized relation and he cares about us. It's just not the same with a community mailbox.

I mail in my votes, and Canada Post handles those. I would not trust any digital voting system.

You are getting down voted for reality.