I think that there should be almost no situations (circumstances) that we agree to take responsibility over another person's investment choices, unless it is a parent child situation or that we purposefully agree to become someone's financial advisor (perhaps a paid position), and if guys are getting into relations to act as free financial advisors to other folks, then they are most likely asking for trouble.
Sure, there could be situations where we personally show others how to buy and how to hold their bitcoin, and we might even help to teach them various cashflow management techniques - yet it still seems better that they are taking control over their finances and we are not doing everything for them, absent some specific and explicit agreement... which is dangerous to manage other people's money without some kind of a special relationship with such other person(s)...and maybe even some segregetion of funds if we are actually managing money for someone else.
I think that many times, we are talking with people about bitcoin, yet we are not managing their accounts or giving them investment advice. Ultimately, they have to figure out what they are going to do and put their plan into practice, even if they might have us helping them out, the overwhelming majority of time, these relationships should be such that the person is completely responsible for his own decisions and his own choices to buy or not to buy and if so, how much and when.
I agree that people must be responsible for their own money decisions. Giving free financial advice to friends is just asking for problems. There is big difference between teaching someone and managing their money. Showing someone how to buy Bitcoin or how to handle their money is helpful guidance. It helps them make smart choices for themselves like teaching them to fish instead of just giving them fish. But if we start managing someone else money or giving direct investment advice without proper paid agreement and separate accounts we are stepping into a risky situation.
At end even though we can share what we know everyone has to be in charge of their own money path. They need to decide what to invest in how much and when. This creates good relationship where we are helpful resource not someone who can be blamed if things go wrong. Your way of thinking encourages financial smarts and independence which are very important for anyone dealing with investments.