I don't know the exact percentage, but most of BTC is owned by a few.
So logically, BTC can never become a store of wealth for the masses.
BUT if BTC cannot serve as storage of wealth for all and neither as day to day currency due to very slow and increasingly expensive transfers, what role will BTC play in the future?
I honestly think that it will become a billionaire's toy in the future and coins like XLM which offer incredibly fast and inexpensive transfers, will play the major role in the financial day to day transactions.
So I believe that the people who have just started to invest in crypto should consider these other coins and forget about bitcoin.
If the world will accept crypto as currency, it won't be BTC.
1% of Crypto Wallets hold 87% of all Bitcoins, people who invest now is just making the rich richer.
Another crazy fact, only 1000 wallets hold 40% of all Bitcoins.
All those who tell you to invest now, they do so because they buyed years before you.
Most people after entering this market told their friends and family to come to this market, if they had listened at that point then they would have incredible profits already but they did not and now they are complaining the price is too high.
The adoption of bitcoin all over the world is not going to stop, there was a time when that number was barely above 1 million and now some estimates put it close to 150 millions, that is a full country of people using bitcoin, if you do not adopt it now then there will be a whole continent of people ahead of you, personally I do not care but the more time you take the lesser the benefits you can get out of it.