I suspect for many people the process is hard to say the least.

Where would you live? Where can you work? Will you even find a job if you legally can work? Will your rights be protected even there? What happens to family back home? Can you take enough money with?

Many people have left hastily but they seem to be people with means, or directly at risk (conscription), young men who can grit it out for a while somewhere else.

Most people don't have connections in other countries to run to.