Forcing interoperability sounds like a good idea, until you recognize that it results in a system of compliance that absolutely stands in the way of innovation for years if not decades to come. Look at seatbelts: the technology has come leaps and bounds in recent decades, with 5 point harnesses being common in racecars, however, you'll probably notice that the seat belts in your current car look a lot like the seatbelts in your first car, because of a government enforced standard. This is the issue with the EU's recent adoption of a mandate that all devices use USB-C (never mind if some of the proprietary chargers that were in use were able to provide a faster charging speed) as well.
Now, admittedly, it isn't impossible to have regulations like this revisited on a schedule to make sure they're still making sense and adjust them, but considering how well that approach has panned out for the USA-PATRIOT Act, I'm not holding my breath on politicians coming up with a reasonable solution here. If your kid complains about the phone they have, I suggest getting them a job application from the nearest retail store. If they're too young for that, perhaps it's a bit soon to have a phone in the first place.
I don't see how your examples stand in the way of innovation. Both seatbelts and the type c requirement are written as minimum requirements, not as "no more no less". Extensions and improvements are allowed or even common, as long as they preserve the base functionality.
A car needs a seatbelt that passes whatever certification is required by law, but there's nothing stopping you from making it better. There are 5 point harnesses out there which are street legal, but the only people buying them are car modders who want to use their racing car on the street and managed to get the rest of the car approved already. Mainstream manufacturers have also experimented with fancier seat belts, but there was no market demand for them.
Type C is similar - the new law requires a device to have a type C port that supports at least all the basic functions. If a manufacturer wants to include their own improvements, they can either use the Type C port like everyone has been doing for years (Warp/Dash charge, QuickCharge, analog audio, thunderbolt 4...) and/or add a second connector. The only one who hasn't been taking this approach was Apple and they haven't done anything innovative with Lightning since it was introduced.
Hell, apple themselves pretty much taken this approach with every other product they have, so it’s not like they didn’t okay over USB-C for years. My guess would be that they deliberately waited out the EU mandate, so any minor public inconvenience that may come from ditching lightning can be forwarded to EU ruling instead of them, they are absolutely okay either way.
Come on, where are all that innovation that happened with lightning or any other cable type during the “unrestricted” decades? It is simply a plain-ass form factor for.. transporting electricity between two ends of a wire, it ain’t getting much better than what we have. Mind you, there is absolutely no mandates on the data part.
Is there some sort of lack of innovation allowing your vacuum cleaner to plug into the same system as your PC as well?
Except there is no meaningful innovation in instant messaging for decades now. This argument is boilerplate of all Apple-related discussions and yet I fail to see what would we actually loose.
Also argument about fast charging is invalid. You are free to have own faster standard, as long as you also support PD over usb-c and that non-issue, as all faster chargers(eg. One Plus), were already working over usb-c.
Besides, it’s kind of absurd to imagine government regulation of bubble hue.
On the other hand, I’d love to see the government regulate Apple’s right to keep using port interface changes as financing events. Every time they change their chargers we’re forced to pay for the new ones which creates waste and is just plain shameless greed on their part. And of course Right-to-repair + Planned-obsolescence.
Now, admittedly, it isn't impossible to have regulations like this revisited on a schedule to make sure they're still making sense and adjust them, but considering how well that approach has panned out for the USA-PATRIOT Act, I'm not holding my breath on politicians coming up with a reasonable solution here. If your kid complains about the phone they have, I suggest getting them a job application from the nearest retail store. If they're too young for that, perhaps it's a bit soon to have a phone in the first place.