Question

what would happen if there is no friction

Answer 1

we would not be able to walk if there was no friction as soon as you would try to walk.you would slip.
also one would not be able to read or write without friction as there would be no friction between the pen and the notebook it would not be possible for us to write
brakes in cars and other vehicles would not work without friction

Answer 2

we will not able to write . we will not able to walk . hope it helps