maybe true ten years ago, but I really feel that you would have been living under a rock to not understand that at this point.

take linkedin for example. what could possibly be the point of making a linkedin account other than to have people you don't/barely know message you about jobs, or vice versa? or look at how people use instagram. the whole point of using the platform seems (to me) to be to accumulate as many follows as possible.

I do think there's at least an argument to be made about reasonable defaults. unless it's overwhelmingly clear that a person would want their profile to be public, it should be private by default. perhaps private should be the only option for minors.