A friend of mine is not interested in buying Bitcoin even after learning about it.
Because according to him Bitcoin is a small number of people who have a lot of Bitcoin. They can easily go down on the bitcoin market if they want to.
Example: Cz. Craig wright & Michel Sailor etc.
Looking forward to the well thought out opinion of the experienced in this regard.
I guess this your friend that is rich is a business man, so if he thinks that bitcoin is profitable and majority of it in the hands of a few individuals, as a business man, why don't he join these whales and control the bitcoin market. I'm guessing that he doesn't see bitcoin, as the kind of business that he'll want to be involved in, instead of giving the excuss of a few investors holding large numbers of the coin.
Despite this whales holding majority of bitcoin, other rich people and the ordinary man on the street are still benefiting from their investments, if it were not to be so, left in the hands of whales alone bitcoin adoption would have diminished significantly, perhaps leading to it's death. But this is not the case today.
This is to be expected in any big establishments, major share holders call the shorts, and if it's not favourable to any investor, all they need do is sale off their assets. So if these big investors control the bitcoin market unfavorably, then there's nothing stopping others from selling all their bitcoin.