The surfaces people touch every day wear out faster than the walls around them. Door edges, cabinet fronts, window frames, and baseboards collect fingerprints, cooking residue, and nicks, and a fresh wall color only makes that wear more obvious by contrast.
Interior paint rarely fails all at once. It dulls near light switches, scuffs along hallways, and yellows above the stove, and each small flaw makes the whole room look tired.
