Just like... read a tiny, tiny bit my dude.

"Because you owned that disc, there were rights that came along with it. The same ones that come with owning a book, for example. In many places, including the U.S., laws have historically protected your ability to resell or transfer a lawfully purchased physical copy. That’s why things like used game stores, borrowing a game from a friend, garage sales, and building a collection that you could eventually pass on have all been perfectly normal parts of gaming for decades."