Quote from: mathdark on Today at 08:03:06 AM

Hi friend, I'm a new user of the forum, I tried to search about this subject and didn't find it, could you help me and provide me with the data?
As for the issues addressed by you, I think exactly, the conversion rate and the way the financial system would deal is a case to be thought, especially the security part and the fees charged by card brands and administrators/banks. I would like to address this issue better in the community

I've picked some rather recent topics I find relevant for this subject:

Fees and conversion rates: Helping Businesses Take Crypto Payments. The Good, The Bad And The Ugly
Security and privacy: Why KYC is extremely dangerous – and useless and Privacy vs. anonymity
Spending the coins: Shall We Hold Our Bitcoin Like Gollum? or Best thing you bought with Bitcoin? ... here there's no "best" since this topic pops up every now and then, especially in Bitcoin Discussion, maybe Beginners and Help too.