I think giving advice is not always good, it all depends on the person you are talking to.

Exactly the point of my post I guess, advice-giving can be a touchy thing.

I have had friends even reproach me when I apparently don't say the "right advice"

That's bonkers, but probably quite human. I think people are a little lazy and want answers fed to them. It happens with the media (news services) which, in my opinion, is little more than propaganda fed to the masses. People want things to be easy, and often like the thought of passing the blame off to someone else, which is easily done if someone has handed them advice.

have felt somewhat "attacked" when someone tries to give me advice because sometimes there is advice that goes against your principles

Unsolicited advice can be quite damaging, I agree. Facebook and other such "social medias" are renowned for it; thankfully (by design) I don't have any social media, other than Hive.

Thanks for your comment, I appreciate it.