I invested in some bitcoins a few months ago. People would doubt, doubt and will always doubt whether to use them. I also like that Bitcoin is not tied to other currencies and all processes are built on mathematics. I didn't doubt whether to buy them, the main problem for me was wallet, because you can never know if this wallet is reliable enough. You can be fooled even with ordinary money, so virtual currency may also be subject to fraud. I found https://igniteoutsourcing.com/publications/bitcoin-wallet-app-development/ , so I was able to select all the security elements for myself in order to create my own application and now I feel safe.