Agree with this and the other commenter, the cable that came with my last phone stayed in the box and hasn’t been unfurled. I also agree this is almost certainly more about profit than environmentalism, but unused cables are e-waste, and I like to use a longer cable so the short ones that come with the phone have limited use case for people like me.
This is partially why I started collecting vinyl. Nothing I buy will ever have a major resale value, it’s there to be enjoyed, because I admire the artist, or found the album to be a masterpiece. They remind me of times in my life I want to revisit, and putting on a record can take me there.