Unsolicited Advice. Is it just me?

This has always been a pet peeve of mine in more things than just disc golf. Has anyone else experienced this? You're out playing, for fun as it always is, and you come around a guy that seems to become your coach telling you everything you're doing is wrong and tries to correct what you do? "You shouldn't throw that." "You should grip it this way." "You would be better if you did this...." You know what I am saying? Do I think they are trying to be rude? No. Do I feel they really think they are helping?  Yes. Do I think they should keep their "advice" to themselves? Yes.
I have had this debate before and maybe I am off base, but if I didn't ask for your advice, then anything you have to say to "fix" what I am doing is just going to mess with my head. I played a few weeks back with a guy that thought he would give me his 2 cents after every throw and I slowly found myself second guessing what I was doing becauae of his opinions. Very frustrating I must say.
So, let me explain myself a little bit. I do like to play with people that I consider better then myself, and when I do, I ask them questions to pick their brain. They can give me feedback that I can choose to incorporate into my game or decide of it won't work for me. That is totally fine because I asked. You will never, I repeat, never catch me trying to give advice to anyone, man, woman, child, novice, or pro unless they have asked me my opinion on it. I have no beef with someone that is learning the game at their own pace. If I shoot a 48 and they shoot a 75 and they don't ask for advice, I see it as them learning the hard way and that is their choice. So be it. But if that person asks me 50 questions on how I do something, rest assured, I will try to explain it to the best of my ability for their benefit. I just feel like that is the ultimate sign of respect. Don't give unsolicited advice. If you have a different opinion, or if you agree, please leave me a comment. (I am soliciting your feedback)