Summary Do not tell people who has not invested on Bitcoin only the positive side of Bitcoin investment, also give them or tell them the more of the negative of Bitcoin, let them know that price of Bitcoin is not constant it always fluctuating, so that they will not having such mind of becoming rich they have invested in Bitcoin with a short time.
People only say this so others don't think investing in Bitcoin is only about making money but if you follow all the guidance of investing in Bitcoin right, there's no way you won't be making money always from Bitcoin. When you buy low, hodl and sell high, you're always guarantee of profits therefore you can also say investing in Bitcoin is a guarantee that you'll be rich in the future when you invest with an approach amount and also hodl a large amount of Bitcoin and not just small quantities. What make people disappointed in Bitcoin is when the price doesn't go as they expected in the period they had in mind but it's not like Bitcoin will never get to that price later.
If you are a responsible investor, you know exactly that any form of investment won’t guarantee instant richness or success.