You know, the question keeps coming up on why should we upgrade our phones, and the answer is simple. Logevity. Your iPhone 12 will have a difficult time classifying images and performing the same computational on device work that you can do even on an iPhone 14, much less an iPhone that supports Apple Intelligence. It is important to realize that these are computers and less of phones. If you just want to browse the web, then that's fine, but it all depends on what you want to do.