I agree completely. But for now, that's a pipe dream. If you want to be in this world, resources like this do help. "Cracking the coding interview" is a great study resource, but how do you actually get feedback and practice? This could be useful.

I wouldn't discourage someone from becoming a software developer, since there are good careers to be had here. But in general, I think it's probably a good decision to go into a different field, if you have the skill and talent to do so, and you aren't bound by visa restrictions that limit what jobs you're allowed to work,