Doesn't make any sense TBH. We should've seen it starting to replace conventional currencies by now.
as far as i can remember bitcoin has never been planning on "replacing" conventional currencies. you can see topics about when will it happen but they are just random users talking about it.
and the reason it is not accepted as a currency yet are these:
- people don't want to spend their coins, they want to HODL and make profit (more fiat!!!).
- the price is volatile so that may scare some people from seeing bitcoin as a currency.
- there aren't enough shops accepting it and the big ones like Amazon for example doesn't still allow bitcoin.
A Scene at my local grocery:
me: let me pay for my milk with bitcoin here
cash register person: Hmm...OK
me: I scanned my bar code, so it is done
cash register person: i don't see a confirmation
me: let's wait a little
people in line: grumble, grumble, grumble
cash register person: Mr, please stay aside
me, 13 min later: what's the heck...forget about it...here is $5
Right there is the problem ... couldn't be better explained !
actually he is explaining a very hypothetical situation. and if you or him ever tried buying something with your bitcoin in real life you could have known this too.