Friction is useful when we park our cars. Without friction a car will not stop and remain static. So will our bed, sofa, chairs. They will slide too much and create problems.
We cannot stand properly, walk properly without friction. We will collide with each other every minute. In winter we rub our hands against each other, we generate heat using friction. that makes us warmer.
Friction dissipates some amount of kinetic energy as heat, radiation and sound. The creeking noise of brakes, old doors comes from friction. In machines, friction reduces the efficiency of energy used. More effort and energy required to perform some work. It causes wear and tear of the machines, tyres etc.
