One only has to go to Thailand or similar to see the reverse, men, nearly in their dotage, tripping around with young girls / boys. All nationalities are represented. The only things in common with the Turkish situation are, money, time and inclination.
If anyone feel shamed or embarrassed by their compatriots behaviour then share that shame equally, let your Turkish friend know that we consider the young guys in Turkey to be the same as the Thai or Phillipino prostitutes.
Merely an economic exploitation, necessary for some, a fact of life for others but still sex and companionship for money.
Steve.