Question

why we always say old is gold

Answer 1

Perhaps an inner meaning of thissaying "Old is gold" could be "Don't disrespect /neglect your elders just because they are old but do take care of them like they are as precious asgold" , "Old is gold" is a very oldproverb that basically means that age and experience is whatatters in the end

Answer 2

whatever is old it is important as gold . we should not think old is wast . even though this proverb is short , But it as valuable meaning.