The Galaxy S21 5G line doesn't ship with a charger or earphones; here's why

Most Samsung customers don't use the included accessories
In a statement made during the Unpacked event, Samsung Senior Vice President of Experience Planning Federico Casalegno stated the following:
We learned that more and more Galaxy users want to make a sustainable choice in their lives for a better future. For instance, many of our users prefer to reuse their current chargers and earphones, and to leave the new ones in the box unused.
Your S21 device will come with a USB-C cable that's compatible with many of your other devices, and our chargers will remain available for anyone that wants one at a new lower price.
This planet is a home we all share and we at Samsung are doing our part to leave it better for future generations. With your preferences and planet in mind, we're proposing a way to prevent these unused items from piling up in your draws.
The move also helps the brand address reduce its carbon footprint and e-waste, both of which are serious issues at the moment. Samsung's charger now retails at $19 in the United States.
These are both valid points, but it should be noted that Samsung mocked Apple for doing the same thing only three months ago.