For some of us, having a locked down, reliable, secure, and pure phone is a great solution.
I don’t want iOS on my random experimental project laptop, for that I have Linux or windows, or vms. But, cellphones are not something I need to hack around on.
Because "unpure" Android barely receives updates and the few occasions where it does, it's extremely delayed. So that's pretty "worse"
You can also choose to jailbreak an Apple device if you really want to be unpure, and luckily doing so won't prevent you from updating your phone in the future.
I don’t want iOS on my random experimental project laptop, for that I have Linux or windows, or vms. But, cellphones are not something I need to hack around on.