For some reason I always think of that type of outfit as wearing leggings/tights instead of tracksuit bottoms…...and that’s gym or lounge wear! So, as long as there’s a decent top/dress to go with the tights, there’s no such thing as too old.or some reason I always think of that type of outfit as wearing leggings/tights instead of tracksuit bottoms…...and that’s gym or lounge wear! So, as long as there’s a decent top/dress to go with the tights, there’s no such thing as too old.