Old Age is good?

 Zohar Chodesh Bereishis #861) If there is an old person in the house it is a good omen for the house Similarly if there is a tzadik in the generation it is a good omen for the world

Archin (19a) Ḥizkiya said that people say a popular saying: If there is an elderly man in the home, there is a burden  in the home, as he does not help with anything; if there is an elderly woman in the home, there is a treasure in the home,as she assists with various domestic labors. 

Any sources reconcilling these two quotes would be appreciated