Manufacturers do that, even in the face of evidence that they're terrible at it, because they really want to avoid ending up like PC manufacturers. Consumers tr

Manufacturers do that, even in the face of evidence that they're terrible at it, because they really want to avoid ending up like PC manufacturers. Consumers treat PC makers as interchangeable suppliers of largely similar products, forcing them to compete on price, so they have very small margins. Samsung is very keen for you to think of your phone as a Samsung phone, not as an Android phone made by Samsung. So to them it makes sense to reinvent standard components, even if it doesn't make the user experience any better. And Samsung does seem to be managing this, though I don't think any of the other Android OEMs have.