Well,there are two sides of studying abroad...
First,if you go abroad to study at a very young age,that's not good at all,because you don't learn the culture of your own country,you may not love your country,and all that you get may be just things from the country you go to...
Second,as to the good side,if you study abroad at the right ages,you would benefit from it a lot,but first of all,you should have a lot of money,because study abroad may cost you a lot of fortune.
As to the benefit,well,you can learn different cultures of other countries but not forget the culture of your own country.
Well,in all,it's all about cultures,you should be clear which country you're in.
That's my answer,just my own opinion,thank you!