This may sound weird, but yeah, I start believing in it.
But since bitcoin was new and my father had some doubts, he did not believe in me and considered bitcoin a scam or Ponzi scheme provided by any company. That's the reason why people living in 2021 felling regret just because they didn't believe back in 2009-2010.
Anyways time has gone, and we can not bring back anything but learn from our mistakes. Undoubtedly, bitcoin is decentralized, and we can still invest in it for our bright future.