It would be impossible for you to do anything.
than what?
If friction is more it leads to unwanted things
You would need more force to push a wheelbarrow across a dirt road because the dirt creates more friction compared to a smooth wood floor. The friction on the dirt road resists the movement of the wheelbarrow, requiring more force to overcome it.
We would need to know what the friction is to affect to respond to this question.
low friction
need more information, please
Because without friction, it would not be successful when typing!
Carpet has more friction than tile. Tile has more friction than ice.
Friction affects most every thing. In a mechanical metronome you would not need a power source if there were no friction.
To nullify means to eradicate or end something. Friction is a type of force. To nullify friction you would need to reduce the source that is causing the friction in the first place. Eg. If you have a rolling object there is friction. The faster the object the more intense the friction. Therefore if you stop or slow down the object you nullify the frictional force.
You would need friction between the tires or tracks and the dirt the tractor is sitting. If you have extended legs, you need friction between the pads and the ground. You would want friction in the brakes. A clutch also relies on friction. Technically you could "dig water", but if you are trenching, then one needs friction between the dirt particles. It is also handy to have friction in your seat, steps, and controls.
No, more friction does not necessarily mean more work. Friction is a force that resists motion, but work is defined as the product of force and displacement in the direction of the force. So, while friction can make it harder to do work in certain situations, they are not directly proportional.