You’re confusing Apple with Google. Google has the business model for doing that. Apple’s business model is creating a platform for privacy. Apple actually has that as a selling point ... :-) ...
(For the record: a watch that you can't use without an iPhone is fundamentally ridiculous. So if you don't have an iPhone, instead of paying $350 for the Watch, you're now batting in the neighborhood of $1000 in order to use the Watch. No thanks.)