They European Union still does not have a single 230V power plug, decades after being founded. The industry has been asking for it since forever. You, sir, are an optimist.
Ripping every single plug socket and outlet out in 80% of the living spaces in the EU is neither cheap nor popular, so "industry asking for it" will not be enough. Your comparison is a bad one.
The parent suggests that bureaucrats could simply change this unified charging port after a while. By that time there will be just as many USB-C ports as there are 230V outlets.
Most of Europe already has a standard 230V plug (https://en.wikipedia.org/wiki/Schuko). It would probably be easier to get a unified 230V power plug than to change the USB-C port again after a decade.
The life cycle of cell phones is a bit less than for buildings and nearly all of the electrical devices that plug into them - the primary exception being rechargable electronic devices. So changing the charging port standard is WAY different than changing the outlet standard.
“Until 1987, mains voltage in large parts of Europe, including Germany, Austria and Switzerland, was 220(±22)V while the UK used 240(±24)V. Standard ISO IEC 60038:1983 defined the new standard European voltage to be 230(±23)V.”
