Many people have being blamed by friends on several occasions on why they introduced Bitcoin investment to them.
Depends on how you introduce Bitcoin to friends. If the goal is to introduce something that is good for investment, because people earn and get rich with it, then I would refuse introducing, even if I will be asked to teach. If a goal is to test how technology work (for example to show that working PC can not only consume electricity and enlarge bills, but also "produce money"), introduced alternative way to fiat payment, then I would consider introducing bitcoin to a friend.
My friends rarely ask me about Bitcoin. Only a few and indeed their interest is because of publications on social media for now. Their interest is of course, related to the benefits of investing in Bitcoin. Rarely will they focus on using Bitcoin as an alternative to fiat payments.
Their initial understanding is not wrong, but it is our job to provide more details regarding their interest in Bitcoin which could be risky for those who do not have the knowledge. If their interest is in investment, then we can provide information regarding good investments and how to plan them well.
And how and why it's good in the long run - due to BTC's nature, which is usually left behind in the Bull runs, unfortunately.