They don't take the advise, because they didn't ask for it. They didn't ask for it, because it's not their priority. It's not their priority, because they think something is more important than exercising.

I know.. It just sucks when people don't accept your advice when the advice your giving them could make them feel better than the ever have.. It's like giving someone a present and them not taking it.. I gave a guy I work with(the one who says he is old and broken)an extra door mounted pull up bar I had and he probably never uses it..
even after working out for 1 year it has changed my life
i had severe self esteem issues when i was in school (sometimes i couldn't look people in the eye)
now all those problems are gone (almost - slowly getting there)

i owe my friend big time for getting me into lifting - after i started getting serious i got 3 other friends at my school into lifting
some people get offended when you tell them they should workout

IDK why
so unless you
really know an individual, i would suggest not to suggest they should workout (directly at least) 0 they feel insulted LOL
most of them are lazy and expect to get huge results in 1-2 months... otherwise everyone in this world would be shredded and huge