In very cold countries people (must -should) wear heavy clothes in street​

Yes they should

Explanation:

should wear cold heavy clothes

An example for that question is: Who among the population would be satisfied with the global handicap?

Surely, the government admnistrators would feel most accomplished and relieved living in a world where nobody holds the wits, brawn, or beauty to challenge their positions. After all, in any society, someone must stand out above all the others to be a successful ruler. But regarding the populace, would it be possible for anyone to feel satisfied with this imposed lifestyle? Or would it be considered too "ingenious" to feel otherwise?

For some, this could be an utopia; For the to-be handicapped, it is opression.