Please make such a function so we can send photos in the chat!
It would require a lot of work to implement such a feature, and there's a chance some people might abuse it. Maybe in the future it will be possible to share pictures in private messages.
Maybe there is a way to hide some pictures on your own profile. and with the posibility to unhide them for certain people?
While it would be technically possible, who would you hide them from for instance? You can already block people or countries from accessing your profile.