Bitcoin is mainly an investment asset now. It is not very widely used for payment, ...
I still use bitcoin as a payment method. Although, not as often as I used to. I still use it from time to time. Other altcoins have not yet reached the same level as bitcoin.
It's still good as both, an asset to hold and as well as payment. But the main use of bitcoin in particular is a payment. For some in the market that trades daily, it's the pair that they would rely on.
Yes, I agree. Bitcoin is probably going to be the next best thing in terms of monetary standard and will have a big impact on the current monetary system. The biggest impact of bitcoin will be the chance to move away from central banking system.