We've heard so much on this thread about relocating majorly to third world countries, but how about for someone like myself who already lives in a third world country wanting to relocate, or maybe take a vacation of nothing less than 4-6 months in a first world country, maybe the USA, Canada or somewhere else, but a first world country.
if you look at how the discussions on this thread started, you will discover that it was not base on either developed or under developed countries but instead we engage on a collaborative approach on both and how one can manage to live a good and satisfactory live along with the family members via the signature campaign earnings and not otherwise, and all that matters here is on individuals ability to foresee and manage resources for a better living irrespective of location once some certain conditions to deriving a standard of living is maintained.
how quickly can it take to adapt to life in the U.S, i know if i get a scholarship, the school will cover a large chunk of my expenses there, but what part-time jobs can a student take up in the U.S, i heard it is easy to school and work over there, it is hard to achieve in my country.
you're trying to ask a question instead of providing solution to the already asked one from OP title, why not go through the whole thread maybe you could get some meaningful thought as guide.
Cost of living can be high in Nigeria, in Belgium it is even a lot higher. If you want to rent a place with 1 bedroom, bathroom and a small kitchen and living area, you need at least 400 - 700 $/month (depending in which city you want to live).
even though i can't say of Belgium because I've not been to the country before but i can boldly say that in Nigeria such amount is good enough to leave the best comfortability you could ever desire to a certain extent, what we consider here is the cost for a living and the economy situation of the countries, take a look at having $1 to be equivalent to #610 and you could rent a standard two or three bedroom flat in some of it major cities like Abuja, Lagos, Port-hacourt and Ibadan which is apparently very cheap starting from the range of #200,000 to #400,000 in Ibadan while #400,000 to #800,000 in Abuja the Federal capital city, Lagos and Port-hacourt cities respectively, imagine how good this is in Nigeria as all standard of living could be achieved, it's secured and lively as well with constant electricity supply, water and good internet network, and same is applicable to many other African countries.