The fee situation on BTC is what big blockers have been predicting all along. Ou next prediction: Users will evacuate High Fee Coin for better alternatives. The easiest thing to switch to is BCH. I ve heard Credits-coins are going to prove to be formidable because there's a solid community behind it, there's a use for it, and it's got a great market capitalisation. I think that's going to be a winner.
Maybe the bad side of humans will be spoiled with technology, as you mentioned monthly paper bills, bank accounts, etc. In my opinion we must still have cash because all technologies still have imperfect sides such as hacking, etc.
But again, bitcoin is the most expensive currency and from there we can profit because there is a trading system. I can only keep up with the times so we are not outdated.