You'll probably need them for old devices. But generally you'll just need a USB A to C cable.

Why does it need to change? The older connectors were too fragile, and needed to be too big of that were to support fast data. USB C can do all of the current data standards and is a pretty robust connector

You may want a newer charger anyway in order to charge faster

"Starting today, all new mobile phones, tablets, digital cameras, headphones, speakers, keyboards and many other electronics sold in the EU will have to be equipped with a USB Type-C charging port," the EU Parliament wrote on social media X.

seems like probably yes!