1. Bitcoin Is Decentralized: I have shared with them that is is a decentralized cryptocurrency which is transferred from Peer to Peer. There is no middle man in Bitcoin transection and it's fully Safe. If you use non custodial wallet then your funds have no access without you.
2. Anonymous Transection: Every Bitcoin transection are normally fast and anonymous. It's very secured also. No need to submit personal or sensitive details at all. It has a limited supply which is 21 Million only. So day by day it's price and demand will increase because no new Bitcoin can be created.
I don't know if it's just me only, but when I was a newbie, I don't care about these 2 things.
Bitcoin being decentralized? Anonymous transaction? Why would I even care about that.
Until I learn more about cryptocurrency, Bitcoin, and the internet itself. It being decentralized is a big thing because nobody can control it. Just a bit correction Bitcoin transactions aren't completely anonymous because an expert can still track your transactions base on what's in the blockchain. Well, it's good that we don't need to share personal information when we are making transactions unlike banks where we need to go there, write our personal information before making transactions.
3. Can Gain Huge Returs : I have also shared that you can make huge profits by buying and holding it. But you have to buy when it's price is cheap and it's very easy to use. You just need to have an internet connection only which may be a limitations too. I also told about it's volatility but assured them if you buy at cheap at the end of the day you will win surely.
This is where you are wrong.
Huge profits by buying, and holding it? Well, it might partly true, but did you share that you can get potential losses while doing that? Buying, and holding isn't a guarantee profit FYI. There is still a chance that you might get losses during the process. This is why many new investors are losing money in cryptocurrency. They mindset that they can get huge returns in crypto is a mistake especially if they don't know what are the risk of investing into it.