Yes, cash in hand might still be around for small businesses (the corner shop, a small bar) but I think once you get past a certain point, cash in hand is dangerous and extremely impractical.He first met Debs at the Sports World job. So how were his wages at Sports World being paid if he didn't have a bank account before she helped him set one up? In the 2000s it seems unlikely that businesses employing a number of staff would be paying cash in hand.
I used to work for one of the big four supermarkets in the 1990s and even back then they really pushed quite hard for you to be paid via bank transfer. One of the payroll staff remembered doing payroll back in the days of cash envelopes for most staff and she said it was always stressful, and one time they had a credible threat of a payroll robbery so there were police everywhere on pay day.
It's difficult to work out exactly how many stores Sports World had by the time JA was working there, but I think it would be well over 100 stores, based on this from Wikipedia. You can't pay that many shop floor workers in cash without your accountant having hysterics, not to mention the risk involved in moving that much cash about.
Sports Direct - Wikipedia
en.wikipedia.org