Why does my treadmill want my email address?

The real question is why our government in the USA hasn't stepped in and made any protections for our data, which would solve this issue entirely. Apps like Temu or Character.AI have very sketchy data management and privacy practices, you have no idea what they're really doing with your data, it's required to make an account for both of them. Clearly they are selling them and obtaining lots of your data to do all sorts of things with. Frankly, I don't think it should be legal to obtain huge amounts of people's data, specifying nothing about what it is actually, truly being used for