I am kinda hungry. But I want that we can buy and pay everything.
What do you mean? Direct payment in BTC? If yes then be ready for the output lol.
1) When you buy foods @ $300 range then when you are about to eat price boost to $400.
2) Yes its really cool when someone sees you pay in bitcoin but be ready for "aliens" around you as you will exposed your beloved physical wallet (smartphone , trezor etc..)
3) If confirmation takes too long then you have to wait for it to be confirmed before they will place your ordes. Damn that. Pretty insane what if 2 days still unconfirmed.