Some people have sexy friends that invite them to stay the night. Some people stay with family. Some people use their phones a lot and need to charge away from home. Some people have worn out batteries that don’t hold much charge.
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.
I don't think anybody is saying that there are no people without friends, or people that have weird cable/battery obsessions. They're just a small minority so it doesn't make sense to make laws cater to just them.