Programming

Inheritance here is limiting. Composition creates a far nicer API. Take both go and rust, they use a set of different interfaces/traits that cover, Reader, Writer, Closer, Seeker. Not everything implements all of these and can implement any set of them. For instance, a File implements them all, as it can be read from, be written to, closed and arbitrarily seeked. But a TCP Stream cannot random seek to other locations inside it - you cannot suddenly reset a network connection to the start again, those bytes are lost. So even if they are both file deciphers they do have different behaviours.

And these can be used for more than just files and network connections - you can write into or read from a vector/list of bytes, even seek randomly into it, but cannot close it as that does not make any sense.

Most languages cannot have multiple inheritance - so you are stuck with a abstract class with all the functions on it with blank implementations so the unsupported functions become no-ops. But IMO that is just a hack to workaround the lack of being able to split these different types up.