Let’s say your house is 15 years old. The kitchen appliances, cabinets, countertops and lighting is dated compared to what a buyer will see in an newer house. Your bathroom is 15 years old. The flooring, vanity and fixtures are dated compared to the competition.
Could your furniture be showing some wear and tear and look dated? Probably, but your thinking “A buyer is going to be purchasing our house, not our furniture. Why should that matter?”