In most other places than the US there is no lock-in by iMessage. Everyone uses WhatsApp (or country specific alternatives). Family tracking is available on Goo

In most other places than the US there is no lock-in by iMessage. Everyone uses WhatsApp (or country specific alternatives). Family tracking is available on Google Maps since so long. Apple Watch as a market is not relevant enough. So ignoring the US situation of iPhones, in the rest of the world, iPhones are purely reputation based thing ("oh you can afford an iPhone" / "it looks good with my <add your brand> handbag") and a simplicity to use situation (enforced UX etc). In the past the camera was a key differentiator. And Apple (incl. some Android competition) will have a very hard time with inflation battled countries to maintain a high-cost strategy with a population who cannot afford it anymore.