There are many positive reasons to limit the number of SPM subjects to 10, including the fact that it could overcome the shortage of teachers where statistics showed that almost 90% of students took 10 subjects.
Limiting the subjects, the students could focus on core subjects as well as participate in other activities that would open up their minds. Apart from this, it can help teachers. With the reduced number of subjects, their energy can be focused on core subjects and the shortage of manpower could be somewhat overcome.
Some students pursued more subjects just to add a few more As to their score while they are non-relevants to the pursuing further higher studies.
There are 111 electives, and some of these are not taught in school but require tuition outside of school. This means only those who can afford the tuition will benefit.