Friend using drugs from state grants. Expose him?
My friend from high-school is now currently studying abroad in university within exchange study Phd program financed by the state government. Since he moved there, he started doing drugs all the time and even putting it publicly out on social media going full delusional mode thinking he is interesting and people are interested in his drama and shenanigans, laughing how he is high all the time. On top of that, he spends all that money given to him by the state on drugs and overspending on fancy meals, electronics etc., which leaves him begging for money to his family, or even me (he tried once but I was very firm with him I wont give him anything). He is 35 by the way, so old enough to not act like a teenage skank.
I tried to tell him many times to stop with drugs, to finally live like a normal person, to put himself together, but he just thinks all that is funny. I stopped contacting him and we barely speak now. What still bothers me the most is him publicly putting out on social media he is doing drugs and he is all the time high on coke, while he is receiving government money we, citizens pay as taxes!
I have a dilemma if to write an email to his university to point out this behaviour (since he is employed there as PhD), and to point out how the state money is spent for drugs basically. Or to let it be since he is my friend and I don't want to cause him harm, and let life deal with him on its own.