Comment by dts

The problem with this statement is what is meant by "just come" to the country. I personally don't think that any immigration process should cater to the serendipitous. It's a legal process and most modern countries have processes in place where if you say "I want to move to X" and start the legal process to move to X in your own country, then yes, you can go there and live there if you meet the given requirements. Are there any countries without any requirements for new immigrants (money in the bank, job offer, etc) so that anyone regardless of status can just come? That I don't know. In my experience the barriers are always money, time, patience, and background. Usually in that order.