Yes, you may have purchased tires recently. But when, exactly, were they new? A few months ago, maybe longer. Then, they should get rotated. Tires need to get rotated about every time you change your oil, or about every three to six months, depending on the type of driving and road conditions.
Tires can wear unevenly, and this may happen quickly. Rubbing against pavement all day is going to wear tires down, and not all tires will wear in exactly the same ways or in the same places. Rotating them helps to ensure even wear, prolonging the life of the…