Lots of blockchain team have developed blockchain and cryptocurrency for payment.
Will cryptocurrencies be able to use for payment?
Will it be useful and convenience?
Which coin do you think the best for payment in the near future?
Currently, cryptocurrency is being used as a method of payment very much, you can see a lot of transactions every day when you transfer coins from one person to another, that's called a transaction and is also a method of payment
Don't know if it's used a lot for payments. I think most of the transaction volume is about trading only.