First of all, i will say it is not an evil. Friction is like a necessary expenditure that we do for doing our daily activities.
Friction is an evil/bad because
It is takes some energy from us when we do work
It heats up objects
It results in wear and tear of objects moving relative to each other
It slows down our activities
When we fall when we run or walk, we get scratches and feel hurt
Friction is necessary/good because
We are able to move on our feet because of friction.
Without friction, we would not be able to assemble here and sit or stand so
comfortably. Every one of us would always be moving, like molecules in a gas
and like astronauts. This debate would not be possible like this.
We would be sliding on roads westwards as the earth rotates to east, every day.
To move around in a curve by a car, the friction helps us do so with out sliding.
enjoy the steep water slide, in the water world
All the gadgets at home will not remain in place
The Bed will slide along the floor when ever we move from one side to the other
We can reduce evil nature of friction
by using lubricants
by suitable design of machines
by using round objects like tyres, ball bearings