How is it that every body knows what someone else should do, but not a dang thang about they own life!

I have often heard that those who can do something well that they actually do it. Those who cant do things well learn to teach it instead ie basketball coaches.Well recently I have noticed a lot of people have relationship advice (ummm for other people) but conveniently gloss over their own situations. I ain't trippin on it because I am sure I do it-lol!
I guess personally, I just don't try not to give advice and do more listening and nodding my head. I realized at the end of the day we are all responsible for our own actions and decisions regardless of others good intentions.
Situation #1.
Girl meets guy and says she wants to marry him after a short period of dating. He dude is in agreement and they plan their futures. The families are livid because they don't agree. Who is right? Who is wrong? What should they do? I know the answer, they couple should do what they want because they are grown and able to make their or choice. If it don't work, then they learned something but it was their choice!
Situation #2.
Man wants to purchase a new car. He has great credit but doesn't make that much $. He can get his dream car with monthly payments of $1,000 per month, but only brings home $2000 per month. Everyone says "don't do it" what should he do? Again, his choice and his lesson to confirm or learn....ya feels me?
Situation #3
Lady decides she wants to dress like it's 1973. Others are laughing every time she walks by. Is she wrong for wearing clothes that a blind person would be envious of? On this one- I agree that a certain measure of professionalism must be considered at the work place, but what I do find equally disturbing, is when others in the work place talk about the co-worker behind her back. I feel if you don't have anything good to say about the person, then don't say nothing!
All the scenarios above have one common theme. Nobody is perfect and we all have different perspectives on life. But if we are all unaware we may become a bigger problem them we ever imagined.

I am Ward....