First of all I have seen so many post similar to this topic so I like adding my own ideas when I come up with a plan so I will share a little of my own knowledge here.
So many people in this forum have been asking what they would do if they persuade someone to invest in Bitcoin and crypto currencies and at last they don't see success, so I came up with my own idea so I won't go wide I will just state based on the topic I have made.
A person can't persuade another to do something when they have not yet seen the results for example, you as a child you depend on your parents for every of your up keep and at the end of the day you go telling them that you have an investment you want to introduce to them, and knowing how our African parents can be smart with questions especially when it comes to an online business that involves money it will be a waste of energy trying to persuade them when they haven't seen the good news in you but when u stop depending on them and pay ur bills they will be wondering what's going on they will want to know what you do from there u fit run enter them and they will be eager to listen.
So the only way to persuade a person to something is when u are the example of ur words.
The problem we have is that everyone want to dey act smart, everyone of us no wan lose money in any way but we want to make money. Even though the person is not part of your family, if you meet person and tell them that this so so investment they pay, and they have to start with such amount of money, if you are not a good example for them they are not going to believe you, they might be like person wey never make am want to show another person way, and that's how a lot of us has been missing a lot of opportunities in life, we always want to follow who know road, so we can tap from their blessings.
Back to your question, do you really think it's easy to convince the parent of nowadays? It's not easy man, if you even have parent who are not educated, even though you are living a good life that is example to them, some parents are not going to believe you because they prefer all these physical investments, make them see where their money dey but online investment, it will not take more than a month and dey will start to dey ask you whether them don make huge profits.