You did what a good friend is supposed to do for his friend by telling his friend to invest in bitcoin instead of saving his money inside the bank for a long that won't yield profit for him. Even though I've given my friends similar advice, I did so by first explaining the value of investing in bitcoin and the associated risk to them. I didn't try to convince them to buy bitcoin or compel them to do so. I just let them make that decision on their own before investing in bitcoin for them because trying to persuade friends or family members to invest in bitcoin is the worst thing anyone could do. So I would advise you to do the same
Advising someone in any financial endeavor is a very difficult task. In this case, if someone succeeds, then they can praise you, on the other hand, if they fail, they most probably destroy their relationship with you. In financial activities usually your own relatives may also misunderstand you. That's why you must have given a good decision. If those people are given a good idea about Bitcoin, they will be willing to invest in it by themselves. There is no need to advise those people to invest. Also, since you will not get any of their profits, why you do the things that deteriorate the relationship. Always refrain from giving investment advice.
