The miners are your new custodians. Charging you variable fees for any size of transfer. Enjoy waiting hours for a transaction to go through, your transfer fee will likely be higher than the price of your coffee and it'll be cold by the time you get it. Or, if this crap caught on, months. Pre-order coffees and hope it is processed by the time you pick it up.
What an actual joke. Who would be dumb enough to want this solution?
