The age numbers does not sound realistic at all@Idilinaa
The 4 million figure would actually make more sense to you if you search the number of adults in Somalia compared to kids.
Approximately 53% of Somalia's population is under 18 years old, according to UNICEF. This translates to about 9 million people. The World Population Dashboard indicates that 47% of the population is aged 0-14, while 51% are aged 15-64, with 3% aged 65 and older.
So, if 9 million people are underage or kids, how many of the remaining 9 million people work at all?! That's why I calculated that 4 million would be the working population of the country. Please do some research on this point.