Not trusting bitcoin from the past and ignoring the invitation of my friends to join bitcoin, I know bitcoin from my friend a few years ago but I ignored it even though at that time I was holding a lot of money and asking for an investment recommendation on my friend, and he suggested me bitcoin but I did not obey it because at that time I considered it all just nonsense, really I really regretted it.

You are absolutely right. Already many times I watched the news make a boom, people started buying coins and they started falling heavily. This manipulation of whales over ordinary users. Or the news came out, bitcoin began to grow, and then this news was denied.

If they are coward then they will not have the guts to spend their money in bitcoin knowing that bitcoin's price is not stable. So the word coward is not right. Fear of cryptocurrency conditions I think is normal. Because of this instability which causes them to be afraid. We cannot conclude by saying that because business is full of risk no matter how small or big.

Yes, it can be dangerous to newbies especially if they are just entering without them knowing what about it, and how it will be operated and should understand the virtue of patience. They must educate themselves first and invest what they afford to lose.