Friction can be good for:
1) Friction between our shoes and the pavement prevents us from slipping
2) Friction between the tyres and road prevents the cars from skidding
3) Friction between the breaks and the wheels helps the car to slow down
4) Making a fire
5) It generates static electricity
Friction can be bad for
1) It causes wear and tear
2) Decreases efficiency since some energy are wasted and turns into heat
3) Damages object
4) Need to apply lubricant often