Why many people dont become a scientist today ?

Many Students have Mathematics, Physics and Chemistry (MPC) at school as main subjects.
For 8 Years, from 5th Standard to 12th Standard.
100s of Hours of classes on each subject (M,P and C).
ZERO hours to show the relationship among M,P and C.
Not everyone were smart enough to understand that in H2O (water),
H and O ( Chemicals) + 2 (Mathematics) + Force (physics) formed water.
Not everyone is smart enough to know that in organic chemistry the atoms follow principles of physics.
Those who understood became Einstiens and Newtons and others became average students like myself.
Oh my great teachers, You've put so many students in dark.
You failed to lead the kindly light.