Some people figure out how to carry their charger in 99% of those cases. Some of those people are still on lightning. Some of them have Qi chargers that already work universally.
This is absolutely not a problem for anyone over the age of 18 or with a modicum of personal responsibility.
But hey, at least you’ve legislated a solution that enhances nothing technical, but makes sure that someday you can… borrow a cable? Cool. Big add. Thanks, EU.