As an alternative idealistic view: you have all this awesome knowledge that you have built up over a lifetime that you are now hoarding. No one is perfect and

As an alternative idealistic view: you have all this awesome knowledge that you have built up over a lifetime that you are now hoarding. No one is perfect and some of your advice might be wrong or otherwise unhelpful; but sharing knowledge and advice allows others to achieve great things that they might have struggled with alone. What is worse: risking someone thinking you are a dick or allowing someone to needlessly suffer through their problems?