18 in right seat of a 747? If it is true, great for him but I have doubts. The only way really, to get into the right seat of that kind of equipment fresh out of school is you get hired into an airline with their own flight academy, which many airlines in Europe have(as you can see from my spelling and grammar, I did not even go to school, period!). But most of those places have a 18 year min age requirement to get in and the programs are 2 or 3 years long.
The only way you'd get into that position is if your daddy is a Sultan and bought you the plane (has happened!).