Advice is defined as.......

guidance or recommendations concerning prudent future action, typically given by someone regarded as knowledgeable or authoritative.

When you give advice you are unqualified to give, you look as dumb as a can of paint.  

For example, if you have never gone to college, you are probably not the right person to give advice to a person who is about to go to college.  That should make perfect sense, you did not go to college, you have no advice on the matter.  Silence!

If you have been to college, lived in dorms, and actually graduated, I think you could have some advice that might be worth sharing with new college goers; oh, unless, of course, after going to college, living in a dorm, and graduating college you end up living with your parents and you are more than 45 years old.  That screams that living in a college dorm did nothing for you and going to college did not really prepare you to live an independent life because if it did, why are you living with mommy and daddy?  You have no advice to offer a new college goer, things did not end well for you.  Shut your piehole. 

If you have gone from state-to-state-to-state and back saying you were going to attend college but ended up failing and dropping out every semester, moving again, attending another college, dropping out again.  Then you move back in with your parents so they can figure out what to do with you.  They end up spending a pretty penny buying you a certificate so that you could actually get a job and make money because college was not your thing, obviously.  You are not qualified to give advice to new college goers.  

See that is what I mean about giving advice to people.  None of the people in the above scenarios should legit be giving out advice for a new college goer.  Make sure you are actually a good source of information on the advice you want to share or don't share it.