Some of the nations that are sanctioned by the US etc. literally do not let most their citizens leave. Citizens of all of them will have difficulty getting visa

Some of the nations that are sanctioned by the US etc. literally do not let most their citizens leave. Citizens of all of them will have difficulty getting visas due to the poor relations that resulted in sanctions in the first place. On top of that, even if there are no political barriers not everyone will have the means to do so. I’m also curious at what point you assign culpability for remaining in a country. Obviously, a baby born in the country can’t be culpable or the concept becomes meaningless. At what age or level of maturity can we start to condemn someone for not noticing that their government is evil and then leaving their family to escape?