Come on, it isn't that slow! Most cash fares take no longer than the painfully slow process of getting a concessionary pass to 'beep', or taking a contactless payment - that always shocks me, everywhere else it takes a split second but on a bus the machines seem to take forever. In today's world, the options should be either take cash and offer change, or go cashless. Smart card, contactless etc are all available to operators who really don't want the hassle of cash. The reality of exact fare polciy is that there is a minority of operators want the cash trade, but who can't be bothered to reciprocate with the basic customer service measure of offering change in reply. It's incredibly 1970s and smacks of the dreadfully old fashioned attitude that buses are for those who don't have a choice. I've never used an exact fares network, and as a relative 'youngster' (ish!) I find the idea totally bizarre. It's my generation and those after me that public transport needs to win over, yet how many people in their 30s or under are walking about with a bus fare in exact change in their pocket? I can tell you the answer is not many! An awful lot tend not to use cash, and where they do it'll have just come out of a cashpoint and be in note form. At which point, "sorry mate we don't give change" starts become a bit of a turn-off.