what if there's no friction? how are we affected to it?

Newton third law says that every action has an equal and opposite reaxtion...... when you walk you push the ground with your foor backwards, the friction force pushes you forward with same force, if tehre was no friction then you will keep on moving your legs on the same apot without going anywhere.

It would defy the Law of Physics as there has to be an equal and opposing reaction. Without this, you would have nothing. We couldn't even exist as people. We couldn't breathe, digest food etc.

Wow, imagine nonstop motions. All cars are probably wrecked by now if there were no friction. All things move in high speed. Man, without it, the world will probably be in exhaustion.