A reply to a similar question had a decent answer:

"We have to learn from everyone because, every single person has something new to teach us, he/she has a different way to handle every other issues hence we can be benefitted by this thing somewhere in life where every life situation demands a different you.

We have to follow no one just because we are the creator of our actions, our image of which none other than us has right to present and also because like everyone else we too had different style for anything"

Citation: Priya Gautam, https://www.quora.com/Why-should-we-learn-from-everyone-and-follow-no-one