there was a lesson I lean from here. when you are preaching to someone about Bitcoin, you shouldn't talk too much, and you shouldn't stay long and you should also allow them make some research and ask questions about what we are preaching to them, to avoid loss at the end.
I don't know, how you see it.
Convincing others about the benefits of crypto currencies and getting them to invest their own money in it is very hard. Especially when we talk to elderly people that are more risk averse, the concept of bitcoins and other crypto coins could seem risky at first. When promoting crypto currencies we should always be open about the benefits and risks involved. In case we only promote the advantages then it could seem that it's a save investment without risk of losing money. It all comes down to managing expectations, the times of getting rich overnight are over. Which doesn't mean that bitcoin and other coins are still great investment. Unfortunately, bitcoin isn't for everybody as some people don't want to take any risks with their money. Someone that only has a savings account at the bank and never bought any stocks or investment funds in the past should think long before buying cryptos.