Abroad this is just normal practice though isnt it, i was over in poland at the weekend and everything gets rounded up because anything less than 1 zloty isn't exactly a lot of money anyway is it
Its only the opposite of suddenly needing a £2 coin surely and getting rid of the £1 note, inflation erodes the currencies purchasing power to the point where 1p no longer actually buys you anything, we are just not up the point where its acceptable to round things up all the time yet.
I started using my credit cards for everything all the time about 5 years ago to get free airmiles and cashback which i then just pay off as soon as i get on my online banking, any change i do end up with ends up in self service machines because its just easy lol