>In other countries the educative system selects early on(ten years old) who is going to be engineer or doctor In some other countries maybe, but definitely no

>In other countries the educative system selects early on(ten years old) who is going to be engineer or doctor In some other countries maybe, but definitely not all. I live in Scandinavia and decided to become an engineer when I was 22 years old. Had to take an extra high school level math course and physics (which was easily done by self studying and then writing an exam), then just applied to university.