Foreign university education like in the university of Cambridge and Oxford in England , there the tuition fee is sky high , like about 30000 sterling pound per year to do Course in Medicine or Engineering .
So what most students from developing countries do is that they simple opt in to study for simpler degree programs like bachelor of science or arts.
Some other students work part time jobs to supplement their income and hence are able to support their livehood in their country of higher studies.
Most students leave their home country with the intention of not returning after completion of their studies but instead work there and earn money.
Although most countries provide post study work permit for 2 or 3 years such as Australia or New Zealand , still getting a post study visa in the UK is very restricted nowadaays and only available for the most talented graduates or for works which the locals are not able or interested to do.
You can leave behind a comment for me to be able to blog about specific areas of visa or permanent residenship or anything related to this field.