Is 10-minute ACH a kind of problem a lot of people face?
Seems like instant liquidity confirmation has been solved with credit cards or Paypal for trivial amounts (third party willing to act as an intermediary) or wire transfers for larger amounts (banks engaging their backchannel comfirmation protocols for a measly $25 fee).
There are also debit card payments, admittedly not as widespread, but impressively fast when used through Square Cash or Facebook Messenger.
None of the existing solutions are perfect, but all seem to be "good enough".
There's no need for anyone to switch at this point. Also, an ACH from Coinbase is 4-5 days not 1 day. Japan is an edge case with a very small population. They have -0.1 interest rate. That is nothing compared to what you might lose based on the wild fluctuations Bitcoin incurs.
Funny part is, you're still wrong. There is a need obviously, as people are switching.
If I deposit to GDAX, sell to USD, and withdraw to my bank it will be there in 1 business day. It's been that way for years, for almost everyone I know. ACH pulls take longer, sure, but what I said is correct.
Also, multiple countries implemented negative interest rates[1]. Japan isn't an anomaly.
What you might lose from BTC fluctuation, you may also gain, as seen by the 400% YTD growth, this year alone[2].
You really should do more research and actually understand the topic instead of dismissing it because it doesn't fit your world-view.
Seems like instant liquidity confirmation has been solved with credit cards or Paypal for trivial amounts (third party willing to act as an intermediary) or wire transfers for larger amounts (banks engaging their backchannel comfirmation protocols for a measly $25 fee).
There are also debit card payments, admittedly not as widespread, but impressively fast when used through Square Cash or Facebook Messenger.
None of the existing solutions are perfect, but all seem to be "good enough".