I only use cash when there's no alternative. much easier to keep track of spending if you use a banking app.
This!
Last time I used cash? Probably sometime last year in summer when the kids place doesn't take card. Still, I always make a point asking to pay with contactless first.
People say cash helps you to budget. But if all spending goes onto one single credit card. To keep within budget, simply look at remaining balance in the banking app, how close is it to a the affordable limit you have set in your mind?
One is itemised list of all your previous spendings.
The other is a pocket full of changes that you have no idea where the money went.
People also say small local shops will struggle to pay processing fees. I say there are many alternatives to Visa/Mastercard. I'm a believer in technology solving problems, one existing tech that works as alternative to cash is cryptocurrency. If you want more stable currency: Paypal gift, bank transfer into mobile numbers, even Alipay.
No matter how small the merchant, in China, they all accept Alipay or Wechat pay. Just scan the QR code and pay, money is transferred instantly and there are no processing fee. If you've used Tesco pay app, it's very similar.