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.
Some people enter Bitcoin investment with the wrong mindset because they don't have the correct knowledge about how it works, they think that it is an asset that you will buy and the value will continue to increase without dropping. When they check their wallet and see that the value has dropped and they continue to see it dip, they will panic and either think that they have been scammed or that it is fast becoming worthless. If they researched or were told that Bitcoin is a volatile asset that dips and recovers, rally and dips again, they will not panic and worry unnecessarily. The most important fact that these newbies needs to understand is that Bitcoin has the potentials to always reach new ATH, that is why it is better to hold it as a long term project. No matter how long it takes your Bitcoin will be profitable for you in bull circles.