It can be hard to discern what is good or bad advise, especially if you are less experienced, young, and also if the advise came from an authority figure in your life, such as a parent as mentioned in the post. Yes, I am speaking from experience, my parents gave extremely bad advise when I was growing up. How was I supposed to know they’re bad advise to begin with? I was too young to know they’re practically bad until I followed and it put me in trouble. And now as an adult and gained my own experience after countering what they say, it was only then I realised their insistent advise (read: instructions) are projections of their own insecurities and unresolved trauma. I have a schadenfreude now that they regret how they parented. I don’t exactly blame my parents, they grew up in an authoritarian culture where absolute obedience and conformity are paramount. But even so, I am wary if I get kids someday and let my parents babysit them. I don’t know what kind of nonsense they’ll say and teach to the kids, especially that my mom is superstitious.
Now that you mentioned it, my mom gives good advise to other people and I was thinking “why don’t you give the same to us?” I kinda realise maybe it’s easier to provide good advise to others as an independent observer, if you don’t have as much personal and emotional attachment to the person.