Hmmm .......

I think that giving advice is a very hard thing to do, it all depends on the situation.

If it envolves some thing that is harming some one then it is good to advise some one how to avoid it or get out of that situation.

If you feel that they may come to harm then all you can do is offer the person your information, what they do with it is up to them.

If they are just asking you because they can not make up their minds what to do, then maybe just listening will help them work out for them selves.