College education and job offer work in many other countries as well.

For a skilled and experienced software engineer, immigration to Canada is far from being trivial compared to EU, UK, Australia, ... even Japan!

It is if you're young. Over 40? Much harder. Over 50? Extremely difficult.

Of course. Because on average your remaining tax-paying and GDP-contributing years are short and your benefits-consuming years are long and imminent.

Canadians are friendly but not suckers.

Over-50s can immigrate if they are joining family, employing people, or exceptionally skilled, etc. You have to make a case that you're a net benefit to Canadians.

That's because young educated people are more valuable.