one needs to be very careful when they tell people about how to go about an investment because some people just only focus about the profit people can earn from bitcoin but forget to tell about the risks that are there in the investment. may be they feel if they let people to know about the risk it will scare them away from having interest but the best thing is to just go ahead and let them know everything, the volatile nature of the market so that if they start investing and they invest wrongly they will hold their self responsible for their mistake.
When deciding to tell someone about an investment, of course you explain the investment in detail and it would be better if they are interested in investing, they should provide direction so that they can avoid mistakes that they might make because they do not understand the investment well and regarding investment decisions, of course we should not force others to invest because all of that must be based on their own wishes and don't let them make mistakes in investing and blame us for telling them about the investment when they make a mistake.
Regarding Bitcoin investment which has a fluctuating market nature, of course they will panic when they see the price dropping after buying it, but if we have explained the investment well, of course they will not take action to sell when the price is dropping which will harm them.