Another example of me feeling old and out of touch 
More and more people don't seem to carry cash, especially young people in their twenties or under. Need to pay something at work? It's a PayPal transfer, same for splitting a meal. Travel all by app. Same with shopping.
But I can't not have money on me 'just incase'. Always have at least a fiver but usually about £40.
So, AIBU to think you always need cash? Or am I clinging onto an old outdated habit 