For many of these countries, owning jets is more optics than warfare.
They are used in parades, diplomatic photos even if they can't fly them !!!
These countries lack one crucial element, trained pilots !!!!
Such countries are ----
1. Libya , jets without a military !!!
2. Afghanistan , inherited jets but no capability
3. Yemen, war torn and grounded
4. Somalia , airforce in name only
5. Chad , jets bought but rarely flown