Dont advice just for the sake!

Why in the world, would people advise to the one in non-relevant subject or a field to them.

It's better to remain calm or silent than just simply advising thinking they knew very clearly everything in every(current) situation.

Its good to suggest but not to forcefully influence a person completely. It is quite hard to let those people clearly understand of the situation and sometimes it may not be needed for an explanation to them too!