I just assume that if they don't want to start investing in crypto, it is because of their ignorance and not being able to accept new things. We may have met people like that and let them continue their actions.
And one day, when their minds are open and they can accept Bitcoin or crypto and come to us asking for further explanation, we can help explain it to them. Apart from that, we still cannot force them and fully leave the decision to invest in them.
What I understood when I started out related to crypto is income. But indeed from the beginning I have studied, the advantages and disadvantages that I can get. Another problem that makes me feel very confident is that I see real evidence of real results from the person who taught me. He's a good friend of mine and I know he's not going to lie with what he says. He said I manage my own funds with my own account without going through any other party. It also made me believe even more. What is certain is that my desire at that time was strong, I wanted to have another income from my hobby (computer).
Finally I survived until now, Bitcoin Crypto has helped my economy to date. There are some people who start but they don't stick around and eventually leave. One word for sure is desire and intention.