I like the idea of having a regulated, living, backwards compatible standard. Which seems to be what USB-C is now, for phones. The EU has soon to be active regulation that will make it a requirement for many things. Yet, it’s not a single, set in stone standard, but one that’s constantly being expanded (eg, version 3.2 and PD).
Of course, the regulation has to also be living. Eg, at some point, maybe there’ll be a strong enough reason to allow another standard (by no means do I think USB-C will always make sense). And the regulation has to very carefully choose the standard.
That way we get the benefits of standardization (from actually everyone using the same format), but we aren’t unreasonably crippling ourselves to do it.