Hi. My daughter turned 15 in October. I haven't really monitored (for lack of a better word) her social media since around when she started secondary school but I've just discovered she's been sharing stuff on Instagram which perhaps isn't a good idea in the long run. Glamour model type stuff basically, posing in the bathroom mirror, some (semi-covered) topless pictures, etc. She's almost at the age when shes legally considered to be able to know what she's doing, but she might decide in the future she doesn't want this stuff out there anymore (by which time it's maybe too late). With so many things at this age I feel like we are in a grey area where she's both too young for me to not intervene in things and old enough that I should let her get on with it. But I mean . . she's technically underage is the thing no matter how you slice it even if not for long. AIBU? 
Have not told my (male) partner yet for what it's worth (and probably won't).