I don't see how that's worse. If you make such a good connector that it should replace all currently used charger ports, there should be a requirement to allow users to give them the time to switch. To not cause untold costs to poor people who can't afford to switch. Interim solutions provide value to society. And laptops aren't bigger phones.
The device is going to come with at least one cord.
How many people can afford at minimum a $429 phone who can’t afford a couple of extra cables?
“poor people aren’t buying iPhones”. But they are buying Androids that are not being supported by their manufactures with even security updates shortly after they buy them.
Cheap Androids not being supported by manufacturers is a separated issue, I fail to see how that applies here. Atleast the cheap phones have a unified charger so poor people don't have to keep buying chargers for them.
Why do people suddenly need to buy a phone for 300$? Almost all current phones support USB C and within 10 years it's will be all of them. No need to buy a phone for a charger.
And if USB-C turns out to be bad, which I don't think'll happen for quite some time, the EU can make sure that legislation ensures poor people won't have to buy a new phone or a new charger until they want to.
I was more thinking of application like Laptops, where you can have multiple different ports already without issue.