Yes, it would, because at the start no one would be supporting it so no one would be able to connect. So it would have broken the entire internets ability to co

Yes, it would, because at the start no one would be supporting it so no one would be able to connect. So it would have broken the entire internets ability to connect to you. And remember, as a user, you don’t just use one DNS server that you need to upgrade, you use multiple and they all need to support it and a typical user is not in a position to upgrade it. If you don’t believe that, believe this: if it were as simple as you claim, just add in UTF8, the world wouldn’t have settled on punycode. They didn’t, because it is not actually that simple. It’s so hard, it’s actually simpler to settle for punycode.