Good question mate. Nil has been spent. My family is very poor. I got scholarships therefore I'm able to go overseas. Have always been working 2-3 jobs and studying ever since I stepped into foreign land. Earn back? Don't need to. Earn there, spend there while study.
Yes, it's easier and cheaper to live here. That's why OZ & NZ is a popular place for migration for Europeans.
I'm here for family reason. Nothing special. But I will migrate back to UK in the future.