Transaction fees are expected to be high because you are dealing with the internet and this is one way that they can get profit. Maybe they should set a standard that everybody can follow
Like communism? That's not how it works, and it won't work. Even if you would have a standard flat fee, people who need to prioritize their transaction will just pay multiple groups of miners extra money to include his transaction first, which will ultimately result in cartels only mining specific transactions..
and ontop of that, the fees that miners currently earn are really not their main income, but rather the block reward is.
