Bitcoin is still very much used and adopted all around the world to this day. It has been accepted by organizations and payment gateways all across the world. So what about Altcoins? Are they worthy to buy in future? To predict the future is very hard. In the cryptocurrency world, prices are very volatile. Dealing with the issues of transparency and scalability problem, might effect cryptocurrencies in the future.
actually, we should not expect cryptocurrencies to be accepted for payment everywhere. they just need to increase the value after each year and make an asset to trade is more than enough.