Hello, I have a student who wants to study in uk. He is Turkish, I am his English teacher, when he came to our school had zero English but now he is good and he passed ielts exam overall 4,5. My boss told him to apply for tier 4 student visa, that's why he went to ielts exam. He is only 17 years old, can he apply for this visa? Or is there other visa which would be more suitable for him? He wants to study language school to improve his English and then go to university in Turkey.