Hi Elizabeth, welcome to the forum
I am guessing that you have probably visited Turkey for holidays in the past? And from your posting it sounds like its your son that wants the move?
If you are unsure, but want to see if Turkish life is for you, why not try a long term rental to 'test the water'
You will get plenty of good information and advice from the CBF members (particularly those that have already made such a move)
Good luck with whichever path you decide to take
Ian