Next time drop the link of a source that seems you're copy-pasting from this article.

We should thanks to those recent dramas on exchange and people now learned and are awake for using them.
The true principle not only in Bitcoin but instead in the entire crypto, you must have control over your key which those mentioned above don't have.  I don't know if there's data that shows how many users leave on centralized exchanges as of now like Binance or Coinbase.  As we can see it has an impact on Bitcoin prices that struggles to resist because people transferred their crypto assets.