I don't agree, Crypto currencies are more safe and secure since you'll no longer be needing any trusted third party. The technology is more transparent Abd you can publicly audit the transaction, in addition using Crypto would be more simplier than any other form of payment. By using this, you can assure  having high level of swcurity and simplicity. But getting involved in Crypto  demands the consideration of the wallet you are using. I'm now paying interest on a open source multi wallet called "HODLER wallet", it promises amazing feature other wallet could not offer.

I believe that Crypto currencies will be the future and other form of payment will come to an end.