I agree that typing curly braces and square brackets on non English keyboards suck, but typing non English languages on an English keyboard sucks too. I made the opposite of your decision: I brought a laptop with my national keyboard and I switch to US layout when programming. That has had a curious effect on me: as my editor and my terminals have black backgrounds and everything else has a white one, something in my brain makes my fingers reach for keys according to the color of the background. I make many mistakes when I attempt to program in a white window (eg: type in gedit) or write in my language in a black one (eg: an md file in terminal.)