I love this venn diagram, shared on CBInsights' latest newsletter. It's hilarious, but also highlights the difficulty in transacting fiat currency - bitcoin. Together with the huge energy costs associated with bitcoin (global bitcoin mining currently consumes as much electricity as the country of Ireland), the poor user experience when buying/selling bitcoin is preventing mass-adoption. 

Once you're inside the bitcoin ecosystem, I find the experience greatly superior to that offered by fiat currency. That said, so far mass adoption of bitcoin has only really occurred in concentrated clusters, so there is less need to deal with the hassle of fiat - bitcoin transactions. For instance, on a recent trip to Budapest, I noticed that the trendier bits of the city had fully adopted bitcoin. Nearly every store, bar and restaurant accepted bitcoin, which locals greatly preferred using to the Hungarian Forint.