Why is it so difficult to go into usa than come out?

Question

i was a student there once and they refused to extend my visa for me to finish my school when i hadn't finished school yet. I couldn't finish my degree coz the credits where not transferable and i had to restart the degree all over again.

Answer 1

i think we are being harder with immigrants coming to the USA, they end up staying longer than anticipated, marry an american then bring their families here to live or they take the US dollar and send it back to their country which is making our dollar weaker.

Answer 2

They don't care what types of characters are leaving the country, they just don't want people moving in and/or staying there if they weren't born there.