A classmate of mine went to the United States to study and immigrated with his parents. Why do all my classmates envy her?

Hehe, this is the normal psychology of people. Everyone has a thirst for knowledge. I haven't seen it outside. What should I do? Isn't this a channel? Simply put, imagine that when you were a child, the child next to you had a fun toy, but you didn't, and you wanted to play. Do you really want to play with him and be willing to make friends with him? Secondly, contacts, maybe you don't pay much attention to this accumulation now, and you will know its importance when you step into the society. Third, it may be a little foreign-worshipping, and some of them are not foreign-worshipping, because they have never been exposed to foreign goods.