He is an adult. I assume, because he is a IT professional he has a good education.
I bet he knows that there are countries where he can get a better pay job. But for his own reasons, he has decided not to pursue this endeavor. I bet he made a choice of staying where he is now consciously. Maybe it's not his cup of tea moving between countries.
Of course no harm talking to him and reiterating the above. But I bet he knows and made up his mind already.