The EU has already standardized cellphone chargers. I wish they would hurry up and standardize external DC power supplies as well.
A four legged member of my family chewed up the wall wart powering our cordless phone. The OEM power adapter isn’t readily available and I wasn’t going to buy an aftermarket replacement without knowing it would work. I ended up buying a new phone. The new phone’s adapters have split loom tubing to protect them from the same fate.
Now I have a cordless phone in good condition that is destined for recycling. I’m trying to find a replacement OEM adapter via eBay so that I can give it to Goodwill. It would have been so much easier if someone forced the consumer electronics companies to use standard wall warts.