If your carpet is worn, dirty, outdated, or has an unusual color, you should seriously consider replacing it. Many houses do not sell because of this problem. Don't think buyers have more money than you have to replace it. They may simply buy elsewhere. Your front yard is an immediate reflection of the inside condition of your house in the eyes of the buyer.
People enjoy their yards.
Make certain that the shrubbery is trimmed so the house can be seen from the street. Mow the grass. Sweep the walkways. Clean away any debris. Remove parked cars.