If you know something somebody else doesn't know, share that information without shaming. Not everybody has had the same opportunities for learning, or the same experiences. This is especially true if this information can have a major impact on the person's life, but it's true of even little, seemingly insignificant things. Don't be a knowledge snob! 💜
I will go ,perhaps, a bit further, and state:
If you have knowledge, in any field, but particularly modern life skills, you have a moral responsibility to share that knowledge, with those that don't.
And yes shame has no place in this.