Because I rather like the fact the iOS devices get OS updates for about twice as long as Android devices. Android security was also a pretty bad joke for a very long time—it has started to change, but there's only so much they can fix. Google would release an OS (or even a security) update, then you'd have to wait for both the OEM and the network provider to pass the update on to end users. Google are changing this with security patches, but there's still a lot of Android devices running old versions with no prospect of any new features coming any time soon.
In iOS land, there's no OEM or network intermediaries (something Apple insisted on in all deals with networks from the first iPhone), so generally takeup of a new iOS version happens really promptly - as of June 2020, 81% of iOS users are on iOS 13.* That's good for the health of the platform as app developers can build on top of new OS features knowing a reasonable number of actual users can use those new features.
Also, there are a whole variety of suppliers of Lightning cables. Go to Amazon and search "MFi certified lightning cable".
* https://www.statista.com/statistics/565270/apple-devices-ios...