Do you happen to be an introvert? If I were to bet...Definitely one of the signs of wisdom. Young people love to blab. Makes them feel important. Older, wiser individuals learn what to say and when. And more importantly - why.
Never give out information for free. Keep it in reserve until you find moments where disseminating will help you.
For example: I don't think people I know in real life have any idea what my political leanings are. There exists no reason to offer up information like that for nothing.
