Unfortunately this is the world in which we are living nowadays.
Being a System Analyst I have fighting against all these from years but having poor success or no success at all.
If you use FB, WhatsApp any social media platform or even if you have an Android cell phone you are screwed.
More than a hundred pieces of information are taken from every user account, not only your name and phone number but your likes, the way you use the platforms, what are you looking for, the web sites you visit, how much time you spent in every page, how many clicks you do, and so on...
If you have your location active in your phone they do know where you are and where you were and all your movements.
If you have a computer connected to Internet, an email address, a bank account, etc. you are screwed!
It won't be long before a child is born, they put a chip up his *** and that's it! You are screwed forever.
Anyway, have a happy Holidays and a great and prosperous new year!