Earlier quoted context omitted.
On the plus side, using a card gives you a good list so you can see what you've spent. This makes accounting simpler than using a cash book and accumulating receipts. On the minus side, I use contactless ("wave to pay") all the time now, and find I rarely look to see how much I'm spending on small transactions. Even with larger transactions, it doesn't feel like "real money".
I think it's the opposite for me, using cash makes it way easier to get an idea of how much I spend. I use the ATM three times per month with 100 pounds each so 300 pound/month in normal expenses. With card I would need to to an addition of everything per month.
Not only that, I can download a monthly spreadsheet of all my transactions, pivot them into a simple table and so on and so forth. Data out the wazoo. £105 a month on tube fares. £235 a month on lunch. £17 on fuel. Knowing where I spent it is as useful if not more so than how much I spent in total.
Then of course there is the free money I get from spending on a card. It all seems like a no brainer. And I never need to go to an ATM. And most the time I just lean my wallet against a card reader and mosey onwards.
I'm not sold.