Checkers segregates cash and card payers. Really!

Checkers and Woolworths are discriminating against people that wants to pay cash for their shopping. Suddenly cash is not king anymore and you are told to wait for a cash till to open so you need to let people through that has waited less than you because the cash till busy. So am I less busy or in a hurry than a person that pays with a card? Why humiliate cash payers like that? If you want 2 kinds of till then have 2 lines! As if we are not segregated enough in our beloved South Africa! Is my money worth less than the guy that Most likely are buying on credit?