I did some research on Bitcoin because I was interested in it, and I discovered that the key principles of Bitcoin are peer-to-peer, anonymity, pseudonymity, decentralization, and operating without a middleman to ensure that Bitcoiners can have financial freedom. However, despite knowing that Bitcoiners adhere to these tenets, why do some Bitcoiners act contrary to them? Why do they continue to support centralized exchanges, use them, and retain their Bitcoin there?
Because not everyone cares about security and not everyone has cold storage. Most often, ordinary laziness prompts you to store everything on the stock exchange, that's the whole answer. Not many people care about their funds and when problems happen with exchanges, as it has happened more than once when users remember the main idea of Bitcoin and security.