Old people could be bitter and their life experiences may be limited, but they don't extrapolate life trajectory from 1 datapoint.
Well, to be more precise: yes, general life advice is likely found in better quality from older, than from younger people.
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This may be an artifact of our current times, which change so quickly that the wisdom older people accumulated through their life experiences may no longer be applicable to the current reality. But, throught history, older people often really were treasure troves of wisdom.
> Personally I can find wisdom in 2 year olds babbling
Such as?
Enjoying the moment. The excitement of new experiences. Saying what you want without filters. And literally covering your ears, if there is too much noise, opposed to smiling and accepting all unpleasant things.
Personally I can find wisdom in 2 year olds babbling, as well as 90 years old. It depends on the person and time.
I discovered, that you can learn something from any person (even if it is, how not to do things). And age is not the determining factor.