Credit cards are very popular among shoppers who will look for items to buy when they visit shopping malls or commercial places in order to obtain the goods that they want. Without the credit card, it will be impossible for them to make a purchase there and then, as many would be reluctant to carry large amounts of money in order to make their purchase. In fact most of them would probably prefer to go for a credit card processing online system so that they would not need to travel so far in order to shop and simply order from the luxury of their homes.
However one should note that not all the shops that we go to have a merchant account available, or even if they do, there is a possibility that the credit card system had gone offline at the time. Hence it is always a good idea to bring some cash at all times for emergency reasons. I would suggest that if you plan to shop or even dine in a restaurant, always ask if they accept credit card payments or if so, if their machine is online. Have it double-checked too because we never know if we have the cash on hand or otherwise.