@
DshhhIndeed!
Actually you don't normally need carry large amounts of cash - unless you're buying something expensive cash-only, like a second-hand car from a private seller.
I rarely carry more than about £30, often less; though many of my purchases are where card payments are not possible or would be silly anyway. I am though fortunate in that ATMs are still reasonably accessible to me, one only five minutes' walk away, and even my bank still has a local branch.
Many people living in rural villages and even some suburban areas have no services anywhere near them, and no public transport to the nearest towns where if they are lucky they might still find physical post-offices, banks, etc.
