But that will take some more time for the transaction. For that you will also deal with the receiver to accept that and you will need to do the transaction from exchange to make it convenient and so people will not be able to show their payment in bitcoin in any currency and then there will be a lot of other complications start to occur. The better is that we go direct with the current fees.
Some because of long transactions have long switched to altcoins. Nevertheless, this problem must be solved. It was very inconvenient to use bitcoin