How's the health quality of those less developed countries? What's the life expectancy? How many years until the kids have to starting working?

Where I live, a Southern European country, we don't really have big cars and nice vacations, but we do have cheap health care and high life expectancy (80 years).

And there aren't many less developed countries on the top of this list: https://en.wikipedia.org/wiki/List_of_countries_by_life_expe...

Is it worth the 9-to-5 (or higher)? I don't know.