The school bags are generally provided with the broad strips because:
1
It will spread the force of the bag over the large area of the shoulder of the child producing large pressure
2
It will spread the force of the bag over the large area of the shoulder of the child producing less pressure
3
It has become a trend among the students to carry the bags with wide strips
4
It will spread the force of the bag over the small area of the shoulder of the child producing less pressure