The primitive does have a point uhh - made a cogent statement about cloud storage. We discovered the same thing, but use it to our advantage.
For example, I use Dropbox, and the two of my kids who are old enough for cellphones are required to have it installed as well - that way their mother and I get a copy of EVERY picture and video they take. We made it clear to them they have no expectation of privacy, and if they either delete or disable Dropbox and the other apps I have installed to insure they have no privacy on their phones, I delete the phones from their possession.
We see their pictures.
We track their locations.
The wife reads their text messages.